Figure 3-10: Dry Contact Wires' Mate - AudioCodes Mediant 1000 User Manual

SIP User's Manual
You can view a detailed description of these alarms by accessing the Active Alarms Table
(refer to 'Viewing the Active Alarms Table' on page 288) in the gateway's embedded Web
server.
The external alarm system is connected to the Mediant 1000 gateway's dry contact
connector on the CPU module, using the supplied dry contact wires' mate (refer to the
figure below). The mate provides four spring-cage terminal block connector labeled 4, 3, 2
and 1 (from left to right). These connections correspond to the four pins of the dry contact
connector on the CPU module.
You need to supply your own wiring (for connecting to the mate's spring-cage connections)
as well as a visual and/or audible alarm system attached at the other end of the wires. The
dry contact connector suites wire sizes in the range 20 to 28 AWG. In addition, the dry
contact system can receive a current of up to 1.5 A.
Note:
To set up a dry contact system, take these 2 steps:
1. Insert two wires into the mate's spring-cage wire connectors in position 4 and 3 for the
gateway's dry contact port I, and two wires in position 2 and 1 (for the gateway's dry
contact port II), by performing the following:
a. With a sharp, pointed object, press the position's corresponding orange button;
the cage of the connection opens.
b. Insert the wire into the connector and then release the orange button; the cage
closes, securing the wire in place.
2. Connect the other ends of the dry contact wiring to the alerts system (alarm, siren, or
light) according to your preferences and requirements.
Version 5.2

Figure 3-10: Dry Contact Wires' Mate

The dry contact alarm provided on the CPU card should be connected only to
SELV (Safety Extra-Low Voltage) non-energy hazard sources (Class 2) as
per UL 60950 and EN 60950.
41
3. Installing the Mediant 1000
September 2007