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Difference between revisions of "MRBD - Relay Board"

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== Features ==
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[[Image:1009970200.PNG|thumb|250px|The MRBD board - 1009970200]]
* Equipped with 6 dual change over relays and relay drivers
+
 
* Runs on +24 V supplied from the Power Distribution Board PDB.
+
==Highlights==
* Accepts RCOs with high- or low-level switch setting on the board
+
* Equipped with 6 dual changeover relays and relay drivers
 +
* Powered by +24 VDC
 
* Connector for 6 RCOs + 2 GND reference signals
 
* Connector for 6 RCOs + 2 GND reference signals
 
* Connects to the AlphaCom Subscriber Connection Board through a 1:1 cable
 
* Connects to the AlphaCom Subscriber Connection Board through a 1:1 cable
 
* Fastens onto mounting rail in AlphaCom exchange
 
* Fastens onto mounting rail in AlphaCom exchange
 +
* Relay switching capacity:  125VDC/AC, 1.25A.
 +
** 1,25A is maximum carrying current, maximum switching current at 125VAC is 0,5A. (approx. 60W).
 +
 +
==Additional Documentation==
 +
* [http://www.zenitel.com/product/mrbd Additional Documentation on Zenitel.com]
 +
 +
==Connectors and Switches==
 +
[[image:MRBD-1.PNG|thumb|left|600px|Connectors and switches on MRBD board]]
 +
<br style="clear:both;" />
 +
 +
The jumpers S1-S6 determine if the RCO should be activated by a high or low level. High level is used in AlphaCom system, while low level was used in the previous TouchLine generation of intercom system.
 +
 +
==Connections==
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===AlphaCom XE7===
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In the XE7 the cable is connected to the 8-pin pinheader labeled '''RCO 1-6''' or '''RCO 7-12'''.
  
== Description ==
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* An [[ASLT|ASLT board]] in board position 1 is required to operate RCO 1 - 6.
The schematics for the boards are in Chapter 23 from page 273 onwards.
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* An [[ASLT|ASLT board]] in board position 2 is required to operate RCO 7 - 12.
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[[Image:DoorOpening E7.jpg|thumb|300px|left|Connection of MRBD in an AlphaCom XE7]]
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<br style="clear:both;" />
  
The AlphaCom relay board runs on +24 VDC that is provided from the exchange
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===AlphaCom XE20/26===
power supply via the Power Distribution Board.
 
  
The RCOs can be activated by a high or low level. This is determined by switch
+
[[File:RCO XE20.PNG|thumb|500px|left|Connection of MRBD in an AlphaCom XE20]]
setting on the board. High level is used in AlphaCom installations, while low level
+
<br style="clear:both;" />
is used in TouchLine Compact installations.
 
  
In the AlphaCom exchange it is recommended that all the RCOs be connected to
 
the same ASLT board(s) in order to simplify cabling.
 
  
The Multi-Relay board is supplied in an installation box that can be fastened onto
+
In an AlphaCom XE26 the 24VDC power is provided by the [[PDB|Power Distribution Board PDB]].
the mounting rail on the connection field of the AlphaCom exchange, or mounted
 
on the wall in any suitable position.
 
  
In the TouchLine Compact exchanges, a mounting rail must be fastened to a
+
==Related Articles==
standard mounting bracket.
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*[[Adding additional relay(s) to a Zenitel IP Device]]
  
== Connectors and Switches ==
+
[[Category:Additional equipment]]
[[image:MRBD Connectors and switches on MRBD board.jpg|thumb|left|250px|Connectors and switches on MRBD board]]
 
[[Category:AlphaCom E System]]
 

Latest revision as of 16:12, 23 June 2023

The MRBD board - 1009970200

Highlights

  • Equipped with 6 dual changeover relays and relay drivers
  • Powered by +24 VDC
  • Connector for 6 RCOs + 2 GND reference signals
  • Connects to the AlphaCom Subscriber Connection Board through a 1:1 cable
  • Fastens onto mounting rail in AlphaCom exchange
  • Relay switching capacity: 125VDC/AC, 1.25A.
    • 1,25A is maximum carrying current, maximum switching current at 125VAC is 0,5A. (approx. 60W).

Additional Documentation

Connectors and Switches

Connectors and switches on MRBD board


The jumpers S1-S6 determine if the RCO should be activated by a high or low level. High level is used in AlphaCom system, while low level was used in the previous TouchLine generation of intercom system.

Connections

AlphaCom XE7

In the XE7 the cable is connected to the 8-pin pinheader labeled RCO 1-6 or RCO 7-12.

  • An ASLT board in board position 1 is required to operate RCO 1 - 6.
  • An ASLT board in board position 2 is required to operate RCO 7 - 12.
Connection of MRBD in an AlphaCom XE7


AlphaCom XE20/26

Connection of MRBD in an AlphaCom XE20



In an AlphaCom XE26 the 24VDC power is provided by the Power Distribution Board PDB.

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