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GDK-100
DIGITAL KEY TELEPHONE SYSTEM
Check Points
1. BRIB boards should be installed in any of the slot No. 1-7 except slot No.8 and EKSU.
2. The PLLU or PLLU2(issue 3 or later) MUST be installed on MPB.
nd
3. The 2
pole of SW1 should be set to the proper position according to the type of TEI.
4. The RX and TX pairs of line should be correctly connected to the TX and RX pairs of NT1.
5. The clock control cable should be connected to the proper position when multi-ISDN cards
are installed in a system. See section 3.5.
6. Terminating resistors on the line.
7. SMEMU MUST be required on MPB for QSIG operation. See SMEMU in section 2.
3.4.6.2 ISDN STIB ( Basic Rate S/T Interface) Installation
STIB card provides 4 interface circuits of Basic Rate format digital CO and/or Extension interface. For
using this board, the PLLU or PLLU2(issue 3 or later) board should be installed on the MPB. 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.
Function of LED
No
Function
LED1
The status of Line 1
LED2
The status of Line 2
LED3
The status of Line 3
LED4
The status of Line 4
Function of SW1: default - all OFF when delivering the board
pole
1
Not used
2
TEI
3
Layer 2 trace
4
Layer 3 trace
!
Note:
1. The function of 2
2. This is set to OFF position as default, therefore it is important to note that 2
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 STIB.
Function of various connectors
Connector
Function
CON1
Serial interface connector
CON2
The purpose of development. It is not fixed on the products.
CON3
Clock control IN
CON4
Clock control OUT
Status
Red: Error, Green: In-use, OFF: Idle
Red: Error, Green: In-use, OFF: Idle
Red: Error, Green: In-use, OFF: Idle
Red: Error, Green: In-use, OFF: Idle
Function
nd
pole has been implemented in firmware version 3.1 or later.
ON
-
Fixed TEI
Automatic TEI
Enable
Enable
84
Remark
OFF
Remark
-
Note 1, 2
Disable
Note 3
Disable
Note 3
nd
pole is set
Remark
Note1
Note 2
Note 2
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