Filter
Top Products
IP LDK-20 Installation Manual Board Installation
36
3.3.3 CBIB (CID Loop Start CO line + Basic Rate Interface Board)
Description
The CBIB can be installed on the LCOB/STIB/CBIB connector, and provides 2 CO/PBX Loop Start CO Line interfaces
that support pulse/DTMF signal and ISDN BRI T-mode interface. CO Interface contains ring and loop current
detection circuits, A/D and D/A conversions, and pulse signaling circuit.
The CO port of the CBIB can be optionally equipped with add-on boards (Figure 3.3.3): CPCU2 (FSK CID, Polarity
Reversal & Call Progress Tone detection Unit 2) to detect FSK signal for the incoming Caller-ID, polarity reversal and
call progress tone; PRCPTU2 (Polarity Reversal & Call Progress Tone detection Unit 2) to monitor polarity reversal
and call progress tone; or PRU2 (Polarity Reversal detection Unit 2) to monitor polarity reversal.
Figure 3.3.3 CBIB
※NOTE
- SW1: The default is ON position.
- The PRU2, the PRCPTU2 and the CPCU2 can not be mounted on the CBIB at the same time. Select the
board that is appropriate for your application to install and use.