Lucent Technologies SLC ConnectReach User & Service Manual page 55

Product Description
Physical and Functional Description
Description of Interface Ports
(Continued)
POWER port
VOICE
CHANNELS port
The POWER port contains a three-pin Molex connector that provides the
connection point for 48 V DC input power to the SLC ConnectReach system from
either a 120 V AC power supply transformer or a DC power source.
The following table provides a list of the power connector pin assignments.
The SLC ConnectReach system includes polarity reversal protection for input
power connections. Pins 1 and 3 can be connected to either polarity of DC voltage
or to an AC power supply.
Description Pin
48 V DC 1 (right)
Safety ground 2 (center)
48 V DC RET 3 (left)
The VOICE CHANNELS port contains a 50-pin telephony type connector which
connects the SLC ConnectReach system to voice-frequency telephone lines by
means of a telephone punch-down block at the site. If the customer's PBX or key
system has an analog interface, connection is made to the analog foreign
exchange station (FXS) VOICE CHANNELS port, and optionally to the foreign
exchange office (FXO) ports for direct inward dial (DID). The CO trunk lines can
also be connected to the FXO VOICE CHANNELS port.
363-208-050
(Continued on next page)
Issue 4 June 2002 2-13