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Difference between revisions of "ASLT - AlphaCom Subscriber Line Board"

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[[image:ASLT.jpg|thumb|100px|ASLT Subscriber Line Board]]
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{{A}} [[Image:1009101010.PNG|thumb|250px|ASLT Subscriber Line Board (1009101010)]]
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The '''ASLT board''' contains circuitry for 6 subscriber connections and one measurement channel for voice switching control. It plugs into any position 1 - 23. The board provides 6 remote control outputs that are software-controlled. The line monitoring reports errors on all subscriber lines. The board can be plugged in/out while the exchange is running. A hot plug-in cable is needed for this purpose. The cable is included in the cable set for the exchange.  All signals for external equipment is run to a connection board mounted on the connection field of the exchange.
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The ASLT line board is used for connection of [[:Category:Stations#Analog_4-wire_stations|analog intercom stations]] to the AlphaCom server.
  
 +
==Highlights==
  
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== Features ==
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*Each board provides six 4-wire subscriber connections
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*6 [[RCO|RCO remote control outputs]] (software configurable activation)
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*1 voice-switched conversation per board
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*When using handset or full duplex conference unit at both ends, the system is non-blocking within each module
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*All subscriber connections suitable for display stations
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*Line monitoring
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*Software-controlled output volume control
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*[[Hot-plug|Hot plug-in/plug-out]]
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*Red/green/amber LED indicates system status
  
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* Can be used with InterGuard, TouchLine and Pamex stations.
 
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* Each board provides 6 subscriber connections
 
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* 6 remote control outputs (software configurable activation)
 
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* 1 voice-switched conversation per board
 
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* When using handset or full duplex conference unit at both ends, the system is non-blocking within each module.
 
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* All subscriber connections suitable for display stations
 
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* Line monitoring
 
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* Software-controlled output volume control
 
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* [[Hot-plug|Hot plug-in/plug-out]]
 
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* Red/green/amber LED indicates system status
 
  
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== Installation ==
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==Installation in AlphaCom XE20/XE26==
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{{obs|
 +
* ''Turn power off before inserting or removing boards''
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* ''Alternatively use the [[Hot-plug|Hot-plug cable]] to insert/remove boards'' }}
  
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=== AlphaCom E20/E26 ===
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*In the [[AlphaCom XE26]] the ASLT board can be placed in any board position 1-23.
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[[Image:Station and RCO connection to ASLT in E20 and E26.jpg|left|150px|thumb|Station and RCO connection to ASLT in AlphaCom E20 and E26]]
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**Board position 1: Physical numbers 1 to 6
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Intercom stations and [[RCO - Remote Control Output|control outputs]] are connected to a connection board mounted on the exchange connection field. 2 pc subscriber connection boards ([[1009930200]]) with 1.5 m connection cables ([[1009501011]]) are delivered with the exchanges.
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**Board position 2: Physical numbers 7 to 12
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**!
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**!
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**Board position 23: Physical numbers 133 to 138
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*In the [[AlphaCom XE20]] the ASLT board can be placed in any board position 1 and 8-23.
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**Board position 1: Physical numbers 1 to 6
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**Board position 8: Physical numbers 43 to 48
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**!
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**!
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**Board position 23: Physical numbers 133 to 138
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{{Obs|Board position 2 to 7 (physical numbers 7 to 42) does not exist in the AlphaCom XE20!}}
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 +
 
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There are three different subscriber connection methods available:
 +
 
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*Subscriber connection board ([[Subscriber Connection Board|1009930200]]) with 1.5 m connection cables ([[1009501011]]) or 3.0 m connection cable. 2 sets of [[Subscriber Connection Board|1009930200]] and [[1009501011]] are included with the XE20 and XE26 exchange packages.<br>
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*5 m ([[1009501021]]) and 10 m ([[1009501023]]) subscriber connection cables. These cables are un-terminated, [[1009501023#Color_codes|color code]] is packed with the cables.
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*Filter and connection card [[1009501041]] with RJ45 connectors.
 +
 
 +
[[Image:Station and RCO connection to ASLT in E20 and E26.jpg|left|500px|thumb|Station and RCO connection to ASLT in AlphaCom XE20 and XE26]]
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<br style="clear:both;" />
  
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5 m ([[1009501021]]) and 10 m ([[1009501023]]) subscriber connection cables can be purchased separately. These cables are un-terminated, [[Connection Cables - Color Code|color code]] is packed with the cables.
 
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<br><br>
 
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<br>
 
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<br>
 
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<br>
 
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<br>
 
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<br>
 
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<br>
 
 
<br>
 
<br>
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==Installation  in AlphaCom XE7==
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 +
*In the [[AlphaCom XE7]] the ASLT board can be placed in any board position 1-6.
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**Bord position 1: Physical numbers 1 to 6
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**Bord position 2: Physical numbers 7 to 12
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**!
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**!
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**Bord position 6: Physical numbers 31 to 36
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{{obs|
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''Turn '''power off''' before inserting or removing boards'' }}
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Stations are connected to the AlphaCom XE7 by means of [[Connection Kit ASLT/AGA/AE1/ATLB|pluggable screw terminals]] on the backplane.
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[[Image:Station, program and RCO connection to RCO in E7.jpg|500px|left|thumb|Station, program and RCO connection to ASLT in AlphaCom XE7]]
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<br style="clear:both;" />
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There are 12 [[RCO]] outputs available on pinheaders on the backplane. RCO 1-6 are controlled by the ASLT board in position 1, and RCO 7-12 are controlled by the ASLT board in position 2.
 +
{{note|Physical numbers 5 and 6 are by default used as inputs for Audio Program distribution, but can alternatively be used for intercom stations. See related article: [[Physical number 5 and 6 (AlphaCom E7)]] }}
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==Cabling==
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The cabling from the AlphaCom server to the intercom station is star wiring principle. Use twisted pair cable. Two pairs of wires are required to each station. The maximum distance depends on the cable diameter:
 +
 +
*0.5 mm wires (AWG24): 1.4 km
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*0.6 mm wires (AWG22): 2.0 km
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*0.9 mm wires (AWG19): 4.0 km
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The four wires are called a-,b-, c- and d-wires. a-b-wires are "transmit" and cd-wires are "receive".
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{{note|a- and b-wire must be in one pair, and c- and d-wire in another pair}}
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[[Image:AnalogCabling.PNG|left|400px|thumb|Two pairs of wires to each station]]
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<br style="clear:both;" />
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<br>
 
<br>
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===Voltage readings===
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For troubleshooting it might be useful to check the voltage on the lines with a voltmeter.
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[[Image:ASLT Voltages.png|left|600px|thumb|Voltage readings on the intercom line]]
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<br style="clear:both;" />
 
<br>
 
<br>
  
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=== AlphaCom E7 ===
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Typical voltages across a- and b-wire:
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[[Image:Station, program and RCO connection to RCO in E7.jpg|150px|right|thumb|Station, program and RCO connection to ASLT in AlphaCom E7]]
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All intercom stations are connected by means of pluggable screw terminals on the exchange back-plane. Line points 5 and 6 are by default used as program distribution inputs on line c-d when an ASLT board is placed in board pos. 1.
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*Open line (no station connected): 32V
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- The jumpers P5 and P6 are set to pos 2-3.
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*Display station connected: 24-27V
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- The potmeters P5 and P6 are used to adjust the input level.
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*Non-display station connected: 29-30V
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Line points 5 and 6 can also be used as normal subscriber points.
 
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- Set jumpers 5 and 6 to pos 1-2
 
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- In AlphaPro, select Exchange & System >Boards
 
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- Change the port setting from ‘Audio program feed’ to ‘Default’
 
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- Reset the exchange
 
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The RCO outputs 1-6 are associated with the board in pos. 1, and RCO 7-12 with the board in pos. 2.
 
  
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=== Cabling ===
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Typical voltages across c- and d-wire:
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Desktop stations are connected to the line on RJ45 wall sockets.
 
  
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== Compability ==
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*Open line, or station connected in Open mode: -21V
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The four-wire interface provides compatibility with existing standard station range from STENTOFON with the exception of TouchLine display stations produced earlier than March 1995. These stations are no longer compatible due to reduction on the display signal output from the exchange. TouchLine display stations produced after March 1995 are labeled version 1.1 and are fully compatible with the AlphaCom exchange.
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*Station connected in Private mode: -19V
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*Station in conversation: +9 to +12V
  
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[[Category:AlphaCom E System]]
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<br>
  
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== Technical Specifications ==
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==Additional Documentation on Zenitel.com==
  
 +
*[http://www.zenitel.com/product/aslt Additional Documentation on Zenitel.com]
  
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{| border="1"
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[[Category:Feature boards]]
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|-
 
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| width="100pt"|'''Order Number'''
 
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| width="200pt"|'''100 9101 010'''
 
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|-
 
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| '''Operation Voltage''': || 5, 15 24, 32 V DC
 
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|-
 
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| '''Dimensions (WxHxD): || 10mm x 230 mm x 263 mm <br\> 0.39" x 8.97" x 10.26" <br\> Double Extended Europe Format
 
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|-
 
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| '''S/N ratio (conversation'''): || 60 dB
 
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|-
 
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| '''Minimum impedance loudspeaker''': || 20 ohm
 
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|-
 
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| '''Input impedance''' (c-d): || 600 ohm
 
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|-
 
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| '''Frequency range:''' <br\> Conversation <br\> Program distr. || <br\> 200 - 10,000 Hz <br\> 20 - 15,000 Hz
 
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|-
 
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| Crosstalk at 1 kHz || <-80 dB
 
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|-
 
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| '''Capacity for each ASLT board''': || 6 subscrivers
 
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|-
 
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| Duplex-controlled conversations: || 1 voice-switched conversation per board
 
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|-
 
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| '''Remote control outputs''' || 5V 2.2 Kohm
 
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|-
 
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| Cable type: || 2-pair twisted cable per station
 
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|-
 
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| '''Max. cable length to station''': <br\>|| 2 km ( 0.6mm2 - 22 AWG )<br\>1.4 km ( 0.5 mm2 - 24 AWG)
 
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|-
 
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|Distortion: || <2%
 
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|-
 
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|'''Output power''': <br\><br\> || 3-4 W at 20 ohm <br\> 0.6W at 20 ohm <br\> 1W at 63 ohm
 
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|-
 
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|Indicator: || LED (red/green/amber)
 
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|-
 
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|}
 

Latest revision as of 13:52, 17 September 2021

AlphaCom icon 300px.png
ASLT Subscriber Line Board (1009101010)

The ASLT line board is used for connection of analog intercom stations to the AlphaCom server.

Highlights

  • Each board provides six 4-wire subscriber connections
  • 6 RCO remote control outputs (software configurable activation)
  • 1 voice-switched conversation per board
  • When using handset or full duplex conference unit at both ends, the system is non-blocking within each module
  • All subscriber connections suitable for display stations
  • Line monitoring
  • Software-controlled output volume control
  • Hot plug-in/plug-out
  • Red/green/amber LED indicates system status


Installation in AlphaCom XE20/XE26

OBS icon
  • Turn power off before inserting or removing boards
  • Alternatively use the Hot-plug cable to insert/remove boards


  • In the AlphaCom XE26 the ASLT board can be placed in any board position 1-23.
    • Board position 1: Physical numbers 1 to 6
    • Board position 2: Physical numbers 7 to 12
    • !
    • !
    • Board position 23: Physical numbers 133 to 138
  • In the AlphaCom XE20 the ASLT board can be placed in any board position 1 and 8-23.
    • Board position 1: Physical numbers 1 to 6
    • Board position 8: Physical numbers 43 to 48
    • !
    • !
    • Board position 23: Physical numbers 133 to 138
OBS icon Board position 2 to 7 (physical numbers 7 to 42) does not exist in the AlphaCom XE20!



There are three different subscriber connection methods available:

Station and RCO connection to ASLT in AlphaCom XE20 and XE26



Installation in AlphaCom XE7

  • In the AlphaCom XE7 the ASLT board can be placed in any board position 1-6.
    • Bord position 1: Physical numbers 1 to 6
    • Bord position 2: Physical numbers 7 to 12
    • !
    • !
    • Bord position 6: Physical numbers 31 to 36
OBS icon

Turn power off before inserting or removing boards


Stations are connected to the AlphaCom XE7 by means of pluggable screw terminals on the backplane.

Station, program and RCO connection to ASLT in AlphaCom XE7


There are 12 RCO outputs available on pinheaders on the backplane. RCO 1-6 are controlled by the ASLT board in position 1, and RCO 7-12 are controlled by the ASLT board in position 2.

Note icon Physical numbers 5 and 6 are by default used as inputs for Audio Program distribution, but can alternatively be used for intercom stations. See related article: Physical number 5 and 6 (AlphaCom E7)


Cabling

The cabling from the AlphaCom server to the intercom station is star wiring principle. Use twisted pair cable. Two pairs of wires are required to each station. The maximum distance depends on the cable diameter:

  • 0.5 mm wires (AWG24): 1.4 km
  • 0.6 mm wires (AWG22): 2.0 km
  • 0.9 mm wires (AWG19): 4.0 km

The four wires are called a-,b-, c- and d-wires. a-b-wires are "transmit" and cd-wires are "receive".

Note icon a- and b-wire must be in one pair, and c- and d-wire in another pair


Two pairs of wires to each station



Voltage readings

For troubleshooting it might be useful to check the voltage on the lines with a voltmeter.

Voltage readings on the intercom line



Typical voltages across a- and b-wire:

  • Open line (no station connected): 32V
  • Display station connected: 24-27V
  • Non-display station connected: 29-30V

Typical voltages across c- and d-wire:

  • Open line, or station connected in Open mode: -21V
  • Station connected in Private mode: -19V
  • Station in conversation: +9 to +12V


Additional Documentation on Zenitel.com

Retrieved from "https://wiki.zenitel.com/w/index.php?title=ASLT_-_AlphaCom_Subscriber_Line_Board&oldid=225342"