Hitachi CA-HF1300-S3 Operating Instructions Manual page 39

Service information
CU-HD1300F-S3
COMMUNICATION (25pin D-sub female：RDBD-25S-LNA(4-40)(55))
Combined connector: 25pin D-sub male
Contact supply
Switchable
Voltage supply
1 3
2 5
Plug
Pin Pin
13 13
12 12
11 11
10 10
9 9
8 8
7 7
6 6
5 5
4 4
3 3
2 2
1 1
25 25
24 24
23 23
22 22
21 21
20 20
19 19
18 18
17 17
16 16
15 15
14 14
Voltage
17
supply
18
19
TALLY COMM
TALLY IN
25
CCU mainframe
Signal
SYS2
SYS1
SYS0
PD OUT (C) 2W : OUT/IN(C)
PD OUT (H) 2W : OUT/IN(H)
PD SHIELD
PD IN (C) 2W : NC
PD IN (H) 2W : NC
ENG OUT (C) 2W : OUT/IN(C)
ENG OUT (H) 2W : OUT/IN(H)
ENG SHIELD
ENG IN (C) 2W : NC
ENG IN (H) 2W : NC
GND
NC
→TALLY COMM
TALLY COMMON
→G TALLY IN
G TALLY IN
→R TALLY IN
R TALLY IN
NC
PGM2 IN(C)
PGM2 IN (H)
PGM SHIELD
PGM1 IN(C)
PGM1 IN (H)
TALLY ; CU internal
circuit
Contact
supply
24V
1
1 4