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Aria-34e
Digital Key Telephone System
PROTOCOL = BAUD RATE, 8 DATA BITS, 0 STOP BITS, NO PARITY.
4.5.14 ANALOG CO/PABX LINE INTERFACE BOARDS (4LCO/LCOB)
INSTALLATION
There are several types of CO/PABX Line interface boards available. These boards include the
4LCO and LCOB (CO/PABX Line, Loop Start). Additional CO/PABX interface boards are
installed to meet customer specifications.
The major difference between these boards is shown in the table below. The 4LCO board can be
installed on slot #3 only and the LCOB can be installed on slot #4~7 (universal slots).
Both of these two boards provide four(4) Loop Start ports, can be optionally equipped with Call
Metering Unit (CMU50, CMU12k and CMUPR) to monitor call metering pulses and a Call
Progress Tone Unit (CPTU) to monitor call progress signals. The cards can also locate a DTMF
Aria Communications Pty Ltd.
A.C.N. 090 723 925
Figure 10. 1x SIU INSTALLATION
Figure 11. 2x SIU INSTALLATION
4-18
Installation
Rev 1.3
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