Co/Pbx Connections; Loop Start Co Trunk Board (Lcob)) - Vodavi Starplus Triad 1/2/3 Installation Manual

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CO/PBX Connections

These boards provide the interface from system PCM ports to stations or
the switching network. They are described as follows:

Loop Start CO Trunk Board (LCOB))

The LCOB board provides the interface to eight Loop Start CO, FX, or
WATS trunks.
Installing the DTMF-B Module
1. Unpack the DTMF-B Module from its anti-static conductive bag in the
2. Locate the K1 and K2 connectors on the DTMF-B module.
3. Locate the K2 and K3 connectors on the LCOB (outlined).
4. Position the DTMF-B module so that the K2 and K1 connectors match
5. Push the DTMF-B module onto these connectors making sure it is
Each trunk circuit contains a hybrid, 2-wire interface circuit and
control circuitry.
The operation for Pulse Dialing or DTMF signaling can be done on a
per circuit basis.
Each circuit has an LED indicator that gives trunk status.
Each trunk circuit can be disabled as well as the card.
A Normal/Service switch located near the top of the card allows the
card to be inserted or removed from the system while under power.
The CO lines are connected via a 50-pin male amphenol connector
located on the front edge of the card.
The card can accept a DTMF-B unit in a daughter board type
arrangement.
The card ejector tabs are color coded white.
packing box.
up with the K3 and K2 connectors on the LCOB respectively.
seated properly.
CO/PBX Connections