GDK-100
DIGITAL KEY TELEPHONE SYSTEM
91
3.4.7 DVIB (Digitized Voice Interface Board) Installation
DVIB provides system announcement, ACD/UCD announcement, and User Greeting. If necessary, the
DMEU(DVU Memory Expansion Unit) or DMEU4 can be installed on DVIB for the expansion of User
Greetings. And, if necessary, the ADPU(ADPCM Unit) can be installed on DVIB for the expansion of user
access channels.
Function of LED
Status
No
Description
ON
OFF
Remark
LED1
The status of channel 1
In use
Idle
LED2
The status of channel 2
In use
Idle
LED3
The status of channel 3
In use
Idle
LED4
The status of channel 4
In use
Idle
LED5
The status of channel 5
In use
Idle
LED6
The status of channel 6
In use
Idle
LED7
The status of channel 7
In use
Idle
LED8
The status of channel 8
In use
Idle
Function of various connectors
Connector
Function
Remark
CONN1
Serial interface connector( 4pin) for trace
Note 1
CONN3
RCA jack for Audio Input, DVU MOH input
CONN4
RCA jack for Audio Output.
Note 2
CONN5
For the purpose of development
Note 2
CONN6
For the purpose of development
Note 2
CONN7
For the purpose of development
Note 2
CONN8, CONN9
DMEU or DMEU4 connection
CONN10, CONN11
ADPU connection
!
Note
1. CONN1: Trace for the purpose of development and maintenance.
The external module for RS 232C serial interface should be required for trace using this
connector. See GDK-TRC1 in section 2.
2. CONN4,5,6,and 7: It is impossible to use them for user access.
These connectors are usually used for the purpose of development and production test.
Especially, all the pins of CONN5, 6 and 7 should be open for the normal operation.
Function of various switches
Switch
Function
Remark
SW1 Normal/Service
switch
Normal
SW2
SRAM back-up when power interruption or failure
ON
SW3
CPU reset
Not Used
SW4 Not
used
-
JP8
A-law(OFF) /u-law(ON) selection
OFF
Содержание GDK-100
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