Aria-130 Digital Key Telephone System
Issue: 1.2
Installation Manual
81
•
Note :
Two poles of SW1 and SW2 should be set to the ON position to terminate two terminating
resistors on a line. (default ON)
3.4.6.3 ARIA-130 ISDN PRIB (Primary Rate T Interface) Installation
The PRIB card provides one interface circuit of PRI (Primary Rate Interface) format digital CO interface.
If more than one ISDN board is required, some special cables should be used for clock signal control.
CON6 and CON7 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
on PCB
ON
OFF
LED1
Loss Of Signal from the Line
LOS
Normal
LOS
LED2
AIS
Alarm error
Normal
AIS
LED3
Multi-frame Error
Error
Normal
MF
LED4
Remote Alarm Error
Error
Normal
RAI
LED5
CRC Error
Error
Normal
CRC
LED6
The status of the line
In use
All channel idle
IN USE
Table 3.4.35 LED on PRIB
•
Note:
−
All LEDs will be the status of OFF when normal operation.
−
When PRI line is plugged out, LED 1and 3 will be ON.
Function of SW1
: default - all OFF while delivering the board
Pole
Function
ON
OFF
Remark
1
Loop back
Enable
Disable
Note 1
2
Not used
-
-
3
Not used
-
-
4
Not used
-
-
Table 3.4.36 Switch on PRIB
•
Note:
−
This pole is for the purpose of testing PRIB.
−
PRIB can be installed in the universal No 1 ~ 6 of any KSU.
