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TC12 Installation, Commissioning & Maintenance Handbook
666/HE/43100/000
Page 173
Issue 10
7
ADDRESS BIT 5
8
ADDRESS BIT 6
9
ADDRESS BIT 7
10
0
V
11
ADDRESS BIT 8
12
ADDRESS BIT 9
13
ADDRESS BIT 10
14
ADDRESS BIT 11
15
ADDRESS BIT 12
16
ADDRESS BIT 13
17
0
V
18
DATA BIT 0
19
DATA BIT 1
20
DATA BIT 2
21
DATA BIT 3
22
DATA BIT 4
23
DATA BIT 5
24
DATA BIT 6
25
DATA BIT 7
26
0
V
27
MEMORY
WRITE
28
0
V
29
MEMORY
READ
30
0
V
31
DATA TX / RX
32
DATA
ENABLE
33
+5
V
34
WATCHDOG
FAIL
35
POWER
FAIL
36
RESET
OUT
37
+5
V
38
ZERO
CROSS-OVER
39
EXPANSION I/O PCB SELECT
40
+5
V
Table 10 - Integral OTU SK2 SK3 - Test Jacks
PIN Transmit Jack SK2 (REPLY)
Receive Jack SK3 (CONTROL)
1 NC
NC
2
TC IN
RC IN
3
TC OUT
RC OUT
4
TC OUT
RC OUT
5 GND
GND
6 GND
GND
6.3.3.2 Telephone Cable with 6-way Plug
The OTU comes fitted with a telephone cable terminated in a 6 way telecom plug.
Connect the telephone plug to the telephone socket in the traffic control
equipment.
Note The cable should never be disconnected from the PCB Socket SK1
whilst the other end is connected to the telephone network (via the