Difference between revisions of "MRBD - Relay Board"

Revision as of 12:00, 7 August 2015

The MRBD board

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

Additional Documentation

For more documentation please see http://www.zenitel.com/product/product/mrbd

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.

@@ Line 1: / Line 1: @@
 [[Image:99702 RS.jpg|thumb|250px|The MRBD board]]
-The '''MRBD''' relay board has six relays, which are controlled by [[RCO]]'s from the exchange or from a [[RIO]] unit. The MRBD must be powered by +24 VDC. The [[AlphaCom XE7]] and [[AlphaCom XE20|XE20]] comes with a 24VDC outlet for such purpose, but in the [[AlphaCom XE26]] a [[PDB|Power Distribution Board PDB]] is required.
+== Highlights ==
+* Equipped with 6 dual changeover relays and relay drivers
-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 MRBD board is supplied in an installation box that can be fastened onto the mounting rail on the connection field of the AlphaCom exchange, or mounted on the wall in any suitable position.
-== Features ==
-* Equipped with 6 relays, each with double pole, double throw (DPDT) contacts.
-* Max carrying current is 1.25A, 125VDC/AC.
-* Max switching current at 125VAC is 0,5A (Approx. 60W).
 * Powered by +24 VDC
 * Connector for 6 RCOs + 2 GND reference signals
@@ Line 16: / Line 8: @@
 * Fastens onto mounting rail in AlphaCom exchange
-==Technical Specifications==
+==Additional Documentation==
-{| border="1"
+For more documentation please see http://www.zenitel.com/product/product/mrbd
-|-
-!style="background:#ffdead;" width="300pt"|Text
-!style="background:#ffdead;" width="300pt"|Value
-|-
-|Order Number||align=left|1009970200
-|-
-|Input Voltage: <br>
-Maximum Current:<br>
-Maximum Carrying Current through relay contact:<br>
-|| +24 VDC
-mA (all relays active simultaneously)<br>
-,25A
-|-
-|Relays||align=centrer|6 relays each with 2 changeover contacts
-|-
-|RCOs<br\><br\><br\>||align=left|Active high or low (switch setting on the board)<br\>High = AlphaCom<br\>Low = TouchLine system or Turbine station
-|-
-|Recommended room temperature<br\>(non-condensing)||align=left|0'C to + 35'C<br\>+32'F to + 95' F
-|-
-|Humidity Range:||align=left|10% - 90% RH
-|-
-|Dimensions:||align=left|100 mm x 100 mm<br\>3.9" x3.9"
-|-
-|Connector Types:||Spring terminals, AMP MTA 100 connector
-|}
 == Connectors and Switches ==