RingMaster CB901

SYSTEM BUILD-UP

General Description

An existing Ring-Master CB901 system can be expanded by adding one or more STENTOFON AlphaCom E exchanges. The two systems are interconnected via data and audio links. Stations and equipment in both systems will interact as part of the same system. The AlphaCom E IP services can be accessed from the Ring-Master system.

Data
Data are transmitted via one or two serial RS232 links.

• One link (ETP, External Trunk Protocol) is used for station-tostation

calls, Group Call, Call Request and Caller ID.

• An optional link (SIO, Serial Input Output) is used for other

functions like Privacy information and Call Request camp on.

Audio
The audio interconnection between CB901 and AlphaCom E is analogue.

• There are 6 conversation channels in a 12 pair twisted cable

between each Interlink B board in CB901 and AGA board(s) in AlphaCom E.

Audio switching control (Duplex)
There is no transfer of switching control signals between the CB901 and AlphaCom E. The switching will take place individually in the Ring-Master station and in AlphaCom E.

Programming
The CB901-AlphaCom E interface features are programmed by use of:

• SVT for the CB901 part
• AlphaPro and AlphaWeb for the AlphaCom E part and the Ring-Master Daemon

Basic System Features

All internal features in both systems will remain as they are.
The following features will be included in the interface between CB901 and AlphaCom E:

• Station to station calling.

• Display information.
  Call number of calling station or station ID

• Simultaneous (global) All-Call and Group-Call.
  One global call at the time in the RM /ACE system.

• Call request and queuing from stations in CB901 to master stations(guards) in AlphaCom E.
  Calling stations will be camped on in one program distribution channel in CB901.

• Pocket paging.
  Automatic pocket paging in both systems. One individual serial ESPA 4.4.4. connection between AlphaCom E and the pager system; and CB901 and the pager system.
  The info in the pager display will identify the caller who has to be called back manually.

• Privacy.
  Stations in CB901 will be tested for privacy also when called from AlphaCom E. The subscriber board must be modified according to section 6.2

• Remote door opening.
  AlphaCom E will generate a DTMF signal when a button is pressed in the AlphaCom station during conversation with the CB901 door station. This signal will be decoded by the remote output board DP997 inside the RM door station and used to activate the magnetic lock.

Software Description

Ring-Master CB901

The ETP (External Trunk Protocol) communication software is included in revisions from TX5.7. The software in the Ring-Master system must be upgraded if the present software revision is TX5.6 or lower.

The upgrade includes changing of E-PROMs on all processor boards. It is not necessary to change the software in the DNC.

If the software revision is lower than TX5.0 (TX4.x or TX3.x) the processor board(s) must be changed.

Connector P2 must be present on the motherboard in board position 19 in order to get power to the serial links of the processor board NFE1683.

Old systems using the first processor boards NFE1515 and NFE1592 does not have connector P2 on the motherboard in position 19. The new processor board NFE1683 can then be installed in position 20 if there are long pins on the back for the PC port connections. If there are no connection pins at the back, the whole cabinet must be changed to type DP979.
Note: If the processor board is plugged into position 20 in an old rack, you must cut out a piece of the cabinet profile in order to get room for the battery RAM on the board.
Note: The same software must be installed in all nodes in a CB901 multistage system.

AlphaCom E

The software must be of revision 10.30 or higher.
This revision includes the following software routines:

• The software module (Daemon) which is linking the CB901 ETP format with the AlphaCom E main software.
• The WEB interface which is used to configure the AlphaCom for communication with CB901 (AlphaWeb)

The AlphaPro software must be of revision 10.28 or higher. This revision includes the following commands:

• Identification of CB901 stages as nodes in AlphaCom
• Identify the audio links

AlphaWeb Configuration Commands
The Ring-Master Daemon will use a number of tables to maintain the ETP function. These tables will be configurable through the AlphaWeb window.
The following tables are identified:

• Group Call
• Call Request (CAS) to stations in AlphaCom E
• Program channel for call request camp-on in CB901.
• Privacy test of stations in CB901
• RMD system parameters

AlphaWeb System Monitoring and Logging
The AlphaCom E can monitor and log real-time events. This can be viewed in the AlphaWeb.

Ring-Master Daemon System log
The Ring-Master Daemon (RMD) will report the following to the syslog server:

• RMD Up/Down
• AlphaNet Connected/Disconnected
• Serial Port Up/Down

Ring-Master Daemon System Monitoring
The Ring-Master Daemon will report the following to the syslog server:

• AGA/ETP trunks Up/Down
• AGA Trunk allocation failed (no more audio links available)
• Unknown/Erroneous commands from the Ring-Master system

Programming

Individual programming will be carried out in each system by using a locally connected data terminal (PC or laptop).
One system can not be programmed from the other system.
Number plan

• The call number in AlphaCom E must have 4 digits in order to call from CB901 to AlphaCom E. This is limited by the ETP format.
• The number of call digits in AlphaCom E is 2 - 5. Only 4-digit numbers can be reached from the RM side.
• The maximum number of call digits in CB901 is 6. All digits from 2 to 6 can be reached from both sides.

Programming Ring-Master CB901

Use a terminal emulating program such as ProCom plus or Hyperterminal. See section 4.2 for detailed procedure.

Purpose of programming

• Set the data of the serial port used for ETP communication with AlphaCom E
• Set the data of the serial port used for remote dialing from AlphaCom E (PC port) and status output to AlphaCom E
• Program the feature code for the access to the numbers in the AlphaCom E
  If the feature code is one digit ‘F’, then the call number in AlphaCom E will be ‘F A A A’. ‘AAA’ represent any digit
• Identify the 6 hex positions where the NFE1545 audio interface board is connected. This is fixed to F8-FD.
• Identify the 2 hex positions (call numbers) that will be used for privacy test of the RM stations (ETP and SIO).

A modification must be carried out on the subscriber board in order to link two and two subscriber positions together. Se section 6.2

• Each modified subscriber board will offer 4 privacy links.
• Each CB901 stage must have one modified subscriber board for privacy test of the stations within the stage.

Programming AlphaComE

Use the STENTOFON AlphaPro and AlphaWeb PC programs to perform programming. See section 4.3 for detailed programming procedure.

Purpose of programming

• Identify the CB901 stage(s) where the NFE1545 audio interface board(s) is(are) installed
• Program the 6 positions used by the AGA board(s)
• Specify optional station and system functions related to CB901

• Normal station
• Privacy test
• Call request and corresponding parameters

SYSTEM DESCRIPTION

Rack layouts

Ring-Master CB901

Most board types have their fixed position in the racks. Some positions may be left empty or accept different boards depending on performance and configuration. The table below is a typical set-up when integrated with AlphaCom E.

The subscriber lines are available on P2 and the subscriber number address is in hexadecimal format.

Pos	Type	Name	Note
		Basic board rack
1	NFE 1528	Power Board
2-9	NFE 1813	Subscriber Board	Supports: C - GC - AC - PD - D
2-9	NFE 1625	Subscriber Board	Supports: C - GC - AC - PD
2-9	NFE 1525	Subscriber Board	Supports: C - GC - AC
10	NFE 1626	Audio Interface Board	For C - GC - AC - PD
10	NFE 1625	Subscriber Board	If GC - AC - PD is not needed
11	NFE 1545	Audio Interface Board	Audio to AlphaCom, address F8-FD
12	NFE 1545	Audio Interface Board	If 12 audio links are needed
12	NFE 1692	2 Mbit Link Board	Used in 3-stage systems
13	NFE 1692	2 Mbit Link Board	Used in 2-, 3- and multistage systems
14-15	NFE 1521	Link Control Board
16	NFE 1607	Audio Control Board
17	NFE 1519	Switch Control Board
18	NFE 1606	Timing Control Board
19	NFE 1683	Processor Board
20	-	-	Not used
		Subscriber board rack
21-39	NFE 1813	Subscriber Board	Supports: C - GC - AC - PD - D
21-39	NFE 1625	Subscriber Board	Supports: C - GC - AC - PD
21-39	NFE 1525	Subscriber Board	Supports: C - GC - AC
40	-	-	Not used

C	= Call
GC	= Group Call
AC	= All Call
PD	= Program Distribution
D	= Display

AlphaCom E7

Except for the AMC-IP Computer Board in position 7, all board types can be inserted in any board position.

When interconnected to CB901, at least one AGA Audio Interface Board with 6 lines will be used. It is good practice to insert these boards from pos 6 and downwards.

Normally there will be only ASLT Subscriber Boards for analogue stations in the rest of the positions.

The stations and the AGA audio lines are connected to plug-on screw terminals on the backplane. The physical line numbers are equal to the decimal station number.

IP stations do not need ASLT boards; they are connected to the IP bus.

AlphaCom E20 and E26

The AMC-IP Computer Board and the APC Program and Clock Board have dedicated positions in slot 25 and 26.

When interconnected to CB901, at least one AGA Audio Interface Board with 6 lines will be used. This board should be inserted in slot pos. 24.

If more AGA boards are used, it is good practice to insert these boards from pos. 23 and downwards even if they will function in any position.

Normally there will be only ASLT Subscriber Boards for analogue stations and/or ATLB boards for analogue telephones in the rest of the positions.

Note that board positions 2-7 are missing in AlphaCom E20 exchanges.
The stations and the AGA audio lines are available on connection boards on the back of the rack. The physical line numbers are equal to the decimal station number.

IP stations do not need ASLT boards; they are connected to the IP bus.

System Configuration

CB901

All CB901 system configurations can be interfaced to AlphaCom E. One CB901 stage has one basic board rack with power, system boards and up to 8 subscriber boards for 64 lines. An additional subscriber board rack will extend the number of lines with up to 176.

Single stage

• 64 subscribers in a basic board rack
  
• Up to 240 subscribers with additional subscriber board rack
  
• 15 internal conversation links
  

Double stage

• Up to 480 subscribers with subscriber board racks
  
• 15 internal conversation links in each 240 number node
  
• 8 conversation links between the nodes
  
• Node interconnection via 1 x 18 pairs twisted cable or 2 x optical multimode fiber cables

Triple stage

• Up to 720 subscribers with subscriber board racks
  
• 15 internal conversation links in each 240 number node
  
• 8 conversation links between each node
  
• Node interconnection via 3 x 18 pairs twisted cable or 3 x 1 pair optical multimode fibers
  
• Nodes are interconnected in a triangle configuration

Multistage

• Up to 30 x 240 (7200) subscribers
• 15 internal conversation links in each 240 number node
• Nodes are connected to a Digital Network Controller (DNC) in a star configuration via one pair optical multimode fiber cable
  
• 8 conversation links between each node and the DNC
  
• There are no subscribers connected to the DNC

AlphaCom E

AlphaCom cabinets have a fixed position for the AMC-IP Computer Board and the APC Program and Clock Board (E20 and E26 only). All other boards including ASLT Line Boards and AGA Audio Interface Boards can be put in any free position.

It is strongly recommended to insert the ASLT boards starting from the lowest board position and the AGA boards from the highest.

E7 – single module

• Up to 36 traditional stations + IP stations as required
• Each AGA board with 6 audio lines will reduce the number of subscribers by 6
• 1 internal conversation link per ASLT line board

E20 – single module

• Up to 80 subscribers + IP stations as required in normal mode. Up to 102 subscribers with extra power supply
• 5 free positions for AGA or other boards in normal mode.
• 1 internal conversation link per ASLT line board

E26 – single module

• Up to 138 subscribers + IP stations as required
• More than one AGA board will reduce the number of subscribers by

6 per board

• 1 internal conversation link per ASLT line board

Multi-modules

• Up to 4 modules (1 master + 1-3 slaves) can be interconnected to act as one exchange node with extended number of subscriber lines.
• 4 x E7 can have up to 144 subscribers
• 4 x E20 can have up to 320 subscribers or 408 with extra power supplies
• 4 x E26 can have up to 552 subscribers
• The modules are normally interconnected via an IP network but connection using AE1 boards and E1/T1 signaling is also possible
• The number of audio channels depends on the purchased AlphaNet

VoIP licenses, max. 30 per module

AlphaNet

• Up to 254 AlphaCom E exchanges can be interconnected in one network
• The exchanges are interconnected via an IP network
• The total number of global directory numbers is limited to 8700
• The number of audio channels depends on the purchased AlphaNet VoIP licenses, max. 30

Interconnection

General

The AlphaCom E and Ring-Master systems are interconnected via

• One or two RS232 serial ports
• One or several 4-wire, 0 dBm audio links.
  

The physical interfacing between the Ring-Master and AlphaCom E exchanges depends on the configuration on both sides, but the general configuration is the same.
The following examples show the most typical situations. The AlphaCom shown is an E7, but the general connection to E20 and E26 is the same.

Single stage CB901 with ETP data link

• This configuration will give normal call, Group Call and 6 audio links.
• Privacy indication and Call Request is NOT supported.
• Display in RM stations is supported. (Subscriber boards NFE1813 only).
• Pocket Paging must be connected to AlphaCom E.

Single stage CB901 with ETP and SIO data links

• This configuration will give normal call, Group Call and 6 audio links.
• Privacy indication and Call Request is supported.
• Option 1: Display in RM stations is NOT supported.
• Option 2: One current loop port must be modified to RS232 in CB901

Dual stage CB901 with ETP data link

• This configuration will give normal call, Group Call and 12 audio links.
• Privacy indication and Call Request is NOT supported.
• Display in RM stations is supported. (Subscriber boards NFE1813 only).
• Pocket Paging can be connected to RM stage 2 or be connected to AlphaCom.

Dual stage CB901 with ETP and SIO data links

• This configuration will give normal call, Group Call and 12 audio links.
• Privacy indication and Call Request is supported.
• Display in RM stations is supported. (Subscriber boards NFE1813 only).
• Pocket Paging must be connected to AlphaCom E.

Multi stage CB901

• The ETP and SIO data links are connected to the first two stages like in a two stage configuration.
• Each stage can supply 6 audio links by adding an AGA board in the AlphaCom exchange.

Processor board MFE1683 location

In order to connect the serial data links to the processor board NFE1683, there must be a P2 connector on the motherboard in board position 19.
Old systems using processor boards type NFE1515 or NFE1592 does not have this P2 connector. The new processor board NFE1683 can then be installed in position 20 if there are long pins on the back plane for the serial port connections.
If there are no connection pins for board connector 19 or 20 on the back plane, the whole cabinet must be changed to type DP979.

Note: If the processor board is plugged into position 20 in an old rack, a piece of the cabinet profile must cut out in order to get room for the battery RAM on the board.

ETP data link

Use RS232 serial port 4 on the processor board NFE1683 in stage no.1 for the ETP data-link connection to AlphaCom E. This link is controlling the RM station connections.

CB901, non EMC cabinet

• Insert the upper connector from the CPU terminal block on board connector P2-19. Leave the upper 4 pair of pins unconnected.
• Connect 3 wires to the terminal block pos. 18, 19 and 20.
• Solder a male 9 pin D-sub plug to the other end of the cable for connection to port 0 in AlphaCom E according to the table below.

Signal	AlphaCom D-sub	Terminal block	Board no. 19
TX	2	20	19A
RX	3	18	20A
GND	5	19	20B

Port 0 in AlphaCom E20 and E26 need an RJ45 – 9-pin D-sub Serial Cable Adapter type A100A 08010.

CB901, EMC approved cabinet

• Use the 3 m external RS232/Subscriber cable BF952.
• Connect the 37 pin D-sub connector to the processor board terminal on the cabinet rear (upper right).
• Select the RS232 port no. 4 wires at the cable end and solder to a male 9-pin D-sub plug.

Signal	AlphaCom D-sub	Wire color		Wire pair
RX	3		RED	8
GND	5		GREEN
TX	2		RED	9
-	NC		BROWN

Complete connection table for BF952 is found in Appendix 7.1

SIO data link, non EMC cabinets

This port is used for optional functionality data like Privacy info and Call Request.

Single stage CB901 without display stations

The SIO data link cable can be connected to serial port 3 since this port is not in use for display stations.

• Insert the lower connector from the CPU terminal block on board

connector P2-19. Leave 1 pair of pins unconnected between the two connectors.

• Connect 3 wires to the terminal block pos. 22, 23 and 24.
• Solder a male 9 pin D-sub plug to the other end of the cable for

connection to port 1 in AlphaCom E according to the table below.

Signal	AlphaCom D-sub	Terminal block	Board no.19
TX	2	24	16A
RX	3	22	17A
GND	5	23	17B

Port 1 in all AlphaCom E exchanges need an RJ45 – 9-pin D-sub Serial Cable Adapter type A100A 08010.

Single stage CB901 with display stations

If the CB901 exchange has display stations, serial port 3 will be in use.

Use the serial 20mA current loop port no.1. The processor board NFE1683 must be modified and re-programmed to change the port to RS232. This modification involves 5 cuts and 6 straps. See section 6.1.1 for modification procedure.

• Insert the lower connector from the CPU terminal block on board

connector P2-19 from pin 1 upwards.

• Connect 3 wires to the terminal block pos. 39, 40 and 41.
• Solder a male 9 pin D-sub plug to the other end of the cable for

connection to port 1 in AlphaCom E according to the table below.

Signal	AlphaCom D-sub	Terminal block	Board no.19
TX	2	40	1A
RX	3	38	2A
GND	5	39	2B

Port 1 in all AlphaCom E exchanges need an RJ45 – 9-pin D-sub Serial Cable Adapter type A100A 08010.

Multi stage CB901

Use RS232 serial port 4 on the processor board NFE1683 in stage no.2 for the SIO data-link connection to AlphaCom E.

• Insert the upper connector from the CPU terminal block on board connector P2-19 in stage 2. Leave the upper 4 pair of pins unconnected.
• Connect 3 wires to the terminal block pos. 18, 19 and 20.
• Solder a male 9 pin D-sub plug to the other end of the cable for connection to port 0 in AlphaCom E according to the table below.

Signal	AlphaCom D-sub	Terminal block	Board no.19
TX	2	20	19A
RX	3	18	20A
GND	5	19	20B

Port 0 in AlphaCom E20 and E26 need an RJ45 – 9-pin D-sub Serial Cable Adapter type A100A 08010.

SIO data link, EMC approved cabinet

The SIO data link can be connected to serial port 3 since this port is not in use for display stations. If the rear side of the motherboard has green straps for display station modification, remove the two straps at 19A and 20A on card pos. 19.

• Use the 3 m external RS232/Subscriber cable BF952.
• Connect the 37 pin D-sub connector to the processor board terminal on the cabinet rear (upper right).
• Select the RS232 port no.3 wires at the cable end and solder to a male 9-pin D-sub plug.

Signal	AlphaCom D-sub	Wire color		Wire pair
RX	3		BLACK	11
GND	5		BLUE
TX	2		BLACK	12
-	NC		ORANGE

Complete connection table for BF952 is found in Appendix 7.1

Single stage CB901 with display stations

If the CB901 exchange has display stations, serial port 3 will be in use.

Use the serial 20mA current loop port no.1. The processor board NFE1683 must be modified and re-programmed to change the port to RS232. This modification involves 5 cuts and 6 straps. See section 6.1.1 for modification procedure.

• Use the 3 m external RS232/Subscriber cable BF952.
• Connect the 37 pin D-sub connector to the processor board terminal on the cabinet rear (upper right).
• Select the RS232 port no.1 wires at the cable end and solder to a male 9-pin D-sub plug.

Signal	AlphaCom D-sub	Wire color		Wire pair
RX	3		YELLOW	17
GND	5		ORANGE
TX	2		YELLOW	18
-	NC		GREEN

Multi stage CB901

Use RS232 serial port no.4 on the processor board NFE1683 in stage 2 for the SIO data-link connection to AlphaCom E.

• Use the 3 m external RS232/Subscriber cable BF952.
• Connect the 37 pin D-sub connector to the processor board terminal on the stage 2 cabinet rear (upper right).
• Select the RS232 port no. 4 wires at the cable end and solder to a male 9-pin D-sub plug.

Signal	AlphaCom D-sub	Wire color		Wire pair
RX	3		RED	8
GND	5		GREEN
TX	2		RED	9
-	NC		BROWN

Complete connection table for BF952 is found in Appendix 7.1

Data links, AlphaCom E

AlphaCom E7

In the AlphaCom E7 serial port 0 is a 9-pin D-sub connector and port 1 is an RJ45 connector.

In order to connect the 9-pin D-sub plug (SIO signal) to the exchange, an RS232-RJ45 Interface Cable type A100A 08010 must be used.

AlphaCom E20 and E26

The AlphaCom E20 and E26 have a filter board with two RJ45 serial ports and two Ethernet RJ45 connectors.

The upper connector is serial port 0 for ETP signals, and the next is serial port 1 used for SIO signals.

In order to connect the 9-pin D-sub plugs to the exchange, an RS232- RJ45 Interface Cable type A100A 08010 must be used.

RS232 – RJ45 Interface Cable

The internal connection in the A100A 08010 interface cable is:

RJ45 pin no.	D-sub pin no.	Signal
3	2	TX
4+5	5	GND
6	3	RX

Audio interlinks, CB901 side

The NFE1545 Audio Interface Board shall be installed in board position no.11 in the CB901 basic board rack of stage 1.

The AGA Audio Interface Board can be installed in any free subscriber board position in AlphaCom E. Pos. 20-23 is recommended in E26 to avoid modifications of the backplane.

Please see section 3.2.2 for available board slots, and the AlphaCom E installation manual for further installation details.

The NFE1545 board has 8 interlinks, but since the corresponding AGA board in AlphaCom E has 6, only the 6 first interlinks on the NFE1545 board will be used.

If more interlinks are required in a multi stage system, additional NFE1545 boards can be installed in the other stages. Use slot no.11 in all stages.

The number of AGA boards in the AlphaCom E exchange is only limited by the number of subscriber board positions.

• The address programming jumpers on the NFE1545 board shall be put in positions E2-E3 and E5-E6.

The hex addresses for the 6 board positions will then be from F8 to FD.

The lowest LED on the NFE1545 board will be ON. This is just an indication for the free hex address FF.

Audio links, non EMC cabinets

• Use a 12 pair twisted cable for the audio link between the CB901 and the AlphaCom E exchange. The connections are made on the

Krone terminal block.

• The two 20 pin connectors are connected to P1 on the NFE1545 board (the lower connector on the motherboard).

• Leave two unconnected pair of pins above the upper connector
• Leave four unconnected pair of pins between the two connectors

LINK		BOARD 11 P1	TERMINAL BLOCK	ALPHACOM
No.	Direction			E7	E20/26
1	RM>ACE	30 A-B	2-3	31 a-b	1 a-b
	ACE>RM	29 A-B	4-5	31 c-d	1 c-d
2	RM>ACE	28 A-B	6-7	32 a-b	2 a-b
	ACE>RM	27 A-B	8-9	32 c-d	2 c-d
3	RM>ACE	26 A-B	10-11	33 a-b	3 a-b
	ACE>RM	25 A-B	12-13	33 c-d	3 c-d
4	RM>ACE	24 A-B	14-15	34 a-b	4a-b
	ACE>RM	23 A-B	16-17	34 c-d	4c-d
5	RM>ACE	16 A-B	22-23	35 a-b	5a-b
	ACE>RM	15 A-B	24-25	35 c-d	5c-d
6	RM>ACE	14 A-B	26-27	36 a-b	6a-b
	ACE>RM	13 A-B	28-29	36 c-d	6c-d

Audio links, EMC approved cabinets

• The audio link between the CB901 and the AlphaCom exchanges are made by means of an external 3 m open-end subscriber cable type BF952. Identify the D-sub connector on the exchange rear coming from the NFE1545 board in pos. no. 11.
  See section Audio for complete interconnection cable table.

LINK		CABLE					ALPHACOM
No.	Direction	Color w.1		Color w.2		Pair no.	E7*	E20/26*
1	AC>RM		White		Blue	1	31 a-b	1 a-b
	RM>AC		White		Orange	2	31 c-d	1 c-d
2	AC>RM		White		Green	3	32 a-b	2 a-b
	RM>AC		White		Brown	4	32 c-d	2 c-d
5	AC>RM		White		Grey	5	33 a-b	3 a-b
	RM>AC		Red		Blue	6	33 c-d	3 c-d
4	AC>RM		Red		Orange	7	34 a-b	4 a-b
	RM>AC		Red		Green	8	34 c-d	4 c-d
5	AC>RM		Black		Blue	11	35 a-b	5 a-b
	RM>AC		Black		Orange	12	35 c-d	5 c-d
6	AC>RM		Black		Green	13	36 a-b	6 a-b
	RM>AC		Black		Brown	14	36 c-d	6 c-d

See section Audio interlinks, AlphaCom E side for AlphaCom E connection terminals.

Audio interlinks, AlphaCom E

• Connect the 12-pair twisted cable from the non EMC CB901 cabinet

to the AlphaCom E terminals. Make a coding table for connection on both sides.

Or

• Connect the 20-pair cable from the EMC CB901 approved cabinet to the AlphaCom E terminals. See table in section 3.3.7 for wire pair color coding

• The a and b wires are audio FROM AlphaCom E
• The c and d wires are audio TO AlphaCom E

These lines are balanced; the twisted pairs may be connected either way.

Audio links, AlphaCom E7

Even if the AGA board can be placed in any subscriber board position, it is good practice to choose slot no. 6 (line no. 31-36).

The audio connection to CB901 is made by six 4-way plug-on screw terminals, one link per terminal.

AlphaCom E20 and E26

Use the same filter board with cable and connection board as the ASLT Subscriber Board.

The connection board has six 4-way push-on terminals marked 1-6 corresponding to the link numbers.

PROGRAMMING

The programming procedures in this chapter will only concentrate on the procedures concerning the interface between Ring-Master CB901 and AlphaCom E. Further instructions are found in the system programming manuals.

Purpose of programming

Individual programming will be carried out in each system via a locally connected data terminal (laptop).

Note: One system cannot be programmed from the other.

• Set the data of the serial port used for CB901
• Identify the 6 hex positions where the NFE1545 board is connected
• Identify the CB901 stage(s) where the interlink NFE1545 board(s) is(are) installed
• Specify the communication via the SIO port in CB901
• Remote dialing for connection of privacy test station positions
• Remote dialing for cancelling the privacy test connection
• Remote dialing for call request camp-on to a program channel in CB901.
• Remote dialing for program channel cancelling
• Receive event for privacy time-out
• Receive event for call button press (8 digit for identification of pager call)
• Set the data of the serial port used for AlphaCom
• Program the feature code for access to the numbers in AlphaCom E. If the feature code is one digit (F), then a call to a number (AAA) in
  AlphaCom E will be F A A A
• Select the four numbers used for privacy test

Programming CB901

• Connect a PC to the D-sub in front of the RM CPU board NFE1683 via a crossed 3-wire D-sub cable.
• Define the PC as a hyperterminal, Baud rate = 9600/8/n/1
• Log in to the CB901 central by using the super-user command

hPsaB

The super-user status is needed to adjust the two test timers later on in the process.

Ring-Master Configuration Commands

The CB901 system must be configured before the ETP feature can be executed. The configuration process is carried out through a number of SVT commands. See the SVT manual for details.

• Start by un-define the line equipment positions where the ETP trunks will be connected. This is done with the SLEU command:

SLEU F8-FD

• Continue to define which line equipment positions to be allocated as ETP trunk positions. This is done with the SETP command:

SETP	1	F8	<stage no>
SETP	2	F9	<stage no>
SETP	3	FA	<stage no>
SETP	4	FB	<stage no>
SETP	5	FC	<stage no>
SETP	6	FD	<stage no>

SETP 1 F( <stage no>
SETP 2 F9 <stage no>
SETP 3 FA <stage no>
SETP 4 FB <stage no>
SETP 5 FC <stage no>
SETP 6 FD <stage no>

• Define which first digit(s) to be used as ETP call number(s). This is done via the two commands, SCDU and SFC.
  In this example 7 is used as first digit in the call numbers in AlphaCom E (ETP).
• Un-define 7 as first call digit for normal calls:

SCDU 7

• Define 7 as feature code for ETP. The feature ID numbers reserved for ETP are from 81 until 89.
  In this example we will only define ETP call digit for feature ID 87:

SFC 87 7

(87 is selected just to make it easier to remember the call number 7).

The call number series starting with 7 as first digit has been programmed to be associated with the ETP trunks.

All numbers starting with 7 will now be in the AlphaCom E. The call numbers must have a total of 4 digits (7xxx).

• Define which of the Ring-Master call numbers shall be able to make ETP calls (calls into the AlphaCom E system). Use the SFA command to give access to dial feature code 7 (feature ID 87):

SFA 1000-1999 87 +

All station in the range of 1000-1999 can call in the example above.

Refer to the SVT programming manual for general configuration of the Ring-Master CB901 system.

Privacy test call numbers SIO

This position (call number) will be used by AlphaCom E to call the stations in CB901. This must be programmed with privilege no.20, ‘Remote dial receive’.

The remote dialing in CB901 via the SIO port is automatically controlled by the RM Daemon in AlphaCom E.

The disconnect event must programmed for both the SIO number C (A side, event 12) and the called number D (B side, event 64). Please see Privacy Test explanation in section RMD Privacy links and Subscriber board modification in Subscriber boards.

SPT  20 +

( 20 is ‘Remote dial receive’ )

SSE  12,64 +

• These events must now be programmed into all RM stages by the command Set Status Output:

SSO <event no.12> <stage no.> <output to PC port><stage where the PC port is used><stop>