AlphaCom XE20

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AlphaCom XE20 Audio Server with HD Voice


  • Made to provide critical communication in any environment
  • Supports 552 IP stations and 102 analog intercom stations
  • SIM card based software configuration and disaster recovery
  • Fully compatible with any AlphaCom system

Mounting & Dimensions

The cabinet is intended for mounting in a 19” rack. It has room for installation of 20 circuit boards in total: one AMC-IP processor board, one APC program & clock board, and up to 18 feature boards. The server also includes a mains power supply.

Front View

Rear View

Top View

Side View


  • Up to 4 units may be mounted in one 19” rack if sufficient ventilation is provided. It is recommended to mount a cooling fan module on top of each exchange unit.
Mounting AlphaCom XE20

Board positions

Board positions and physical numbers in AlphaCom XE20


XE20 Connections.PNG


The AlphaCom XE comes with one integrated power supply 1009703000. The power supply is supplied from the mains (100 - 240VAC).


Two RJ-45 Ethernet terminals on the IP filter board are used for IP LAN and WAN communication

Analogue Intercom Stations

The two-pair star wired intercom cables are connected to connection boards on the cabinet DIN rail or in a separate distribution field

Program Input

6 program distribution sources can be connected to the APC board via an optional program connection board. Up to 64 extra programs may be added using AGA boards with 16 programs per board

Serial Ports

The serial ports with RS232 and RS422/RS485 interfaces are used for connecting to equipment using these protocols


Serial Port 0

RJ45 (RS232 Only)

No additional settings necessary

Serial Port 1

RJ45 (RS232/422/485)

Additional settings:
  • Switch 8 on S601 on the AMC-IP board must be set to ON.
  • Use the two jumpers on the AMC-IP Filterboard to select between RS422 and RS485.
RS422/485 selector for Serial Port 1 on the XE20 AMC-IP Filterboard

Remote Control Inputs (RCI)


The optional program connection board has input for 6 Remote Control Inputs (RCI) which can initiate programmed actions

RCI inputs in an AlphaCom XE20 and XE26


In AlphaPro there is an RCI table, where the physical address of the input is entered, along with the desired actions. The physical address is given as device + pin-number.

The RCI table supports up to 140 inputs.

  • For internal RCIs in the AlphaCom XE20, the device address is 65-68, and the pin number is 1-6.
  • Internal pin number 8 is the temperature alarm
  • Mappings for the internal RCI's are autoloaded. Mappings for external RCI's (Slave modules, RIO's or IPARIO) must be manually programmed.
  RCI Type Device/Station physical Number Pin Number
AlphaCom XE20 Device 65-68 1 - 6


Start fire alarm message and activate rotating lamp:

RCI Conf Example1.PNG

RCI Conf Example2.PNG

AMG 1 3 - Alarm Message 3 (8193) to group 1 (84)
RCO 5 ON – Turn on the relay that controls the lamp
AMG 1 0 – Alarm Message OFF to group 1 (84)
RCO 5 OFF – Turn off the lamp

Note: Multiple commands are separated by semicolon ( ; )

Remote Control Outputs (RCO)

Each subscriber line card provides 6 freely programmable Remote Control Outputs (RCO)

Device # of RCO's Comment Hardware required
AlphaCom XE20 102 6 RCOs per ASLT card or ATLB-12 card MRBD relay board


Alphacom XE20 RCO’s operate MRBD relays:



The RCO's in an Alphacom XE20 must be mapped. This is done using AlphaPro. Navigate to Exchange & System -> RCO window where the logical RCO is assigned to a physical address.

The physical address is given as Device + Pin Number


  • RCO 1-138 are by default mapped to the internal RCOs in the AlphaCom, i.e. device 65 - pin 1 to device 65 - pin 138. For XE20 the 6 first RCO's are correctly default mapped to the physical address. RCO 7-42 are not physically available, since they are by default mapped to physical number 7-42 which is not available due to the power supply. RCO 43-138 are default mapped to the correct physical address.
  • Mapping for all other RCO's must be configured manually
  • The RCO's can be used freely within the system, e.g. an event on one station can operate an RCO located on a different station or device.
  • The exchange always keeps track of the state of an output in case the device becomes faulty. When a faulty device becomes OK again, the exchange will restore the current RCO state.

Factory Reset (coldstart)

Performing a cold start of the AMC-IP board will delete all previous programming, load factory default settings and set the IP-address to with mask on Eth0.

Cold start button on AMC-IP board

Cold start procedure

Cold start to load default factory settings
  • Press and hold the cold start button on the AMC-IP card
  • Press the reset button on the APC board briefly
  • Keep the cold start button pressed at least 2 more seconds. The AMC-IP status LED will blink green when the boot is ready.

Cold-start of AMC application only, keep IP setting

Cold-start of AMC application
  • Press the reset button on the APC board briefly.
  • After 10 seconds, press the cold start button on the AMC-IP board.
  • Keep the cold start button pressed until the AMC status LED is blinking green.

Modify Factory Default Settings

After cold start the system is set up with a default program and is working without any further programming. To change or add to the default settings, the AlphaPro programming tool must be used.

Other methods of factory default

A factory default can also be achieved in other ways:

  • From AlphaWeb: System Maintenance -> System Recovery -> Load Factory Defaults
  • From AlphaPro: Upload a default AlphaPro database to the exchange


Software upgrade

See AMC-IP software upgrade

Hardware Upgrade

See AlphaCom Exchange Upgrade

Additional Documentation on