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Aria-34e
Digital Key Telephone System
4.5.15 ISDN 2BRI (2B+D: 2 BASIC RATE INTERFACE) INSTALLATION
The 2BRI card provides 2 ports of BRI (Basic Rate Interface) format ISDN CO interface. This
board is used to interface with Telstra OnRamp service supporting ISDN developed to the I-
CTR3[4] European Technical Standards. The OnRamp EURO ISDN service, in conjunction
with the 2BRI, supports supplementary features such as Direct Indial (DID), Calling Line
Identification Presentation (CLIP) and multiple high speed (64kbps) digital channels on each
service.
When using this board, the PLLU2 board must be installed on the MBU. If more than two ISDN
boards are installed, special cable should be used for clock signal control between multiple
boards. Refer to [Clock Control Cable Wiring] section.
Note:
The 2BRI board must be installed in slot #3 and DIP switch #2 must be ON.
4.5.16 ISDN PRI (30B+D: PRIMARY RATE INTERFACE) INSTALLATION
The PRI card provides one(1) port of PRI ( Primary Rate Interface) format ISDN CO interface.
This board is used to interface with Telstra EURO ISDN Primary Rate Access service supporting
ISDN developed to the I-CTR4[5] European Technical Standards. This EURO ISDN PRA
service, in conjunction with the PRI, supports supplementary features such as Direct Indial
(DID), Calling Line Identification Presentation (CLIP) and multiple high speed (64kbps) digital
channels on each service.
When using this board, the PLLU2 board and the MEMU board must be installed on the MBU. If
more than two ISDN boards are installed, special cable should be used for clock signal control
between multiple boards. Refer to [Clock Control Cable Wiring] section.
Note:
The PRI board must be installed slot #3 and the MEMU must be installed on the
MBU.
Aria Communications Pty Ltd.
A.C.N. 090 723 925
Figure 14. 2BRI BOARD
4-20
Installation
Rev 1.3
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