User`s manual

Mediant 1000
H.323 User's Manual 40 Document #: LTRT-83401
¾ 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.
3.4.3 Cabling the Digital Lifeline
The Mediant 1000 gateway containing either one or two digital modules, each with 1 or 2
pairs of spans can provide a “lifeline” telephone link. In the event of a power failure, a relay
connects trunk 1 to 2, and / or 3 to 4 in the same module. The link is provided by the
closing of a metallic switch inside the module so that the trunk from the PBX is routed from
the module to the PSTN.
Note: The Lifeline feature can only be supported between ports on the same
digital module.
Figure 3-6: Mediant 1000 Lifeline Cabling (e.g., Trunk 1 and Trunk 2)
3.4.4 Cabling the Analog Lifeline Phone
The gateway's FXS modules provide a Lifeline phone connection on Port 1.
Note: Only the Mediant 1000 FXS modules support analog Lifeline.