Aria-130 Digital Key Telephone System
Issue: 1.2
Installation Manual
83
3.4.6.4 GDK-100 ISDN BRIB (Basic Rate T Interface) Installation
The BRIB card provides 4 interface circuits of BRI (Basic Rate Interface) format digital CO interface.
If more than one ISDN board is required, some special cable should be used for clock signal control.
CON3 and CON4 are used to control the clock signal when multi-ISDN boards are installed. Refer to
[Clock Control Cable Wiring] of section 3.5.7.5.
Function of LED
LED
Function
Status
Remark
LED1
The status of Line 1
Red: Error, Green: In-use, OFF: Idle
LED2
The status of Line 2
Red: Error, Green: In-use, OFF: Idle
LED3
The status of Line 3
Red: Error, Green: In-use, OFF: Idle
LED4
The status of Line 4
Red: Error, Green: In-use, OFF: Idle
Table 3.4.37 LED on BRIB
Function of SW1
; default -all OFF while delivering the board
Pole
Function
ON
OFF
Remark
1
Not used
-
-
2
TEI
Fixed TEI
Automatic TEI
Note 1, 2
3
Layer 2 trace
Enable
Disable
Note 3
4
Layer 3 trace
Enable
Disable
Note 3
Table 3.4.38 switch on BRIB
•
Note:
1. The function of the 2nd pole has been implemented in firmware version 3.1 or later.
2. This is set to OFF position as default, therefore it is important to note that the 2nd
pole is set to the proper position after checking the type of TEI in your country.
3. These two poles are for the purpose of developing and maintaining BRIB.
Function of various connectors
Connector
Function
Remark
CON1
Serial interface connector
Note1
CON2
The purpose of development. It is not fixed on the products.
CON3
Clock control IN
Note 2
CON4
Clock control OUT
Note 2
Table 3.4.39 connector on BRIB
•
Note:
1. CON1: Trace for the purpose of development and maintenance.
The external module for RS-232C serial interface should be required for trace.
See GDK-TRC1 in section 2.
2. CON3, CON4: They are used to control the reference clock signal when multi-ISDN
boards are installed.
