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GDK-100
DIGITAL KEY TELEPHONE SYSTEM
88
Board issue 2 or earlier version:
CON5 is RS 232C, 9 pin male to access the board for the purpose of development and
maintenance..
This connector can be directly connected with PC for trace ( PRIB issue 2
or earlier version).
Board issue 2A or later version:
CON5 and application circuits on PRIB are removed on PRIB issue 2A to unify the method of
tracing peripheral cards such as PRIB, BRIB, STIB, DVIB and WTIB in all GDK systems.
CON1 is mounted to access the board for the purpose of development and maintenance.
The
external module(GDK-TRC1) for RS 232C serial interface should be required to access
the board through this connector.
See GDK-TRC1 in section 2.
2. CON3: NT/TE mode selection
Open circuit between 2 pins: TE mode (normal operation)
Short circuit between 2 pins: NT mode (Special operation, e.g. NT mode in QSIG operation)
3. CON6, CON7: They are used to control the clock signal when multi-ISDN boards are installed.
See
[Clock Control Cable Wiring]
on section 3.5.
Figure 3.4.6.3
PRIB Layout
GDK-100 PRIB
RJ45
CON8
LED8
CON6(IN)
SW1
U200
(ROM2)
1 2 3 4
1
LED1
LED2
LED3
LED4
LED5
LED6
LED7
CON7(OUT)
CON3(TEST)
CON2(JT)
CON1
CON5
U201
(ROM1)
Содержание GDK-100
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