iPECS iPECS-MG - CO Line Boards; LCOB (Loop Start CO Line Interface Board)

iPECS-MG
Hardware Description and Installation Manual Issue 1.1
39
5.3 CO Line Boards
5.3.1 LCOB (Loop Start CO Line Interface Board)
The iPECS-MG LCOB (Loop Start CO Interface Board) is employed to interface standard
analog PSTN CO lines to the iPECS-MG system. The LCOB is available in three models, the
LCOB4 with 4 analog CO ports, the LCOB8 with 8 ports, and the LCOB12 with 12 ports. The
LCOB supports Caller Identification (CID) detection, Polarity Reversal (PR) detection and Call
Progress Tone (CPT) detection. An optional CMU4 board, which supports four (4) LCOB ports
each, is required to support call-metering service (50Hz, 12 kHz, and 16 kHz). In addition, the
first port of the LCOB has a Power Failure Transfer (PFT) circuit that can be wired to an SLIB
port for PFT service.
The below figure shows the LCOB8, which other than the added interface circuits is identical to
the LCOB 4 and 12.
Figure 5.3.1-1 LCOB8
Table 5.3.1-1 Connector Functions
CONNECTOR FUNCTION
CN1 and CN2 CMU4 connection for 1
st
~ 4
th
ports
CN3 and CN4 CMU4 connection for 5
th
~ 8
th
ports
CN5 and CN6 CMU4 connection for 9
th
~ 12
th
ports