CO Line Boards 4-14
Chapter 4: Board Installation
MBX IP Hardware & Installation Guide
CO Line Boards
LCOB4/8/12 (Loop Start CO Line Interface Board)
The MBX IP LCOB (Loop Start CO Interface Board) is a board for PSTN interface on the MBX
IP system. There are three kinds of LCOB:
• LCOB4 is for 4 ports PSTN Interface,
• LCOB8 is for 8 ports PSTN Interface,
• LCOB12 is for 12 ports PSTN Interface.
The LCOB basically supports Caller Identification (CID) detection, Polarity Reversal (PR)
detection, Call Progress Tone (CPT) detection. And the LCOB has one Power Failure Transfer
(PFT) circuit for 1st port.
>>> The LCOB4/LCOB8/LCOB12 board can be installed on any universal slot.
LCOB4
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