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Connector pin assignment table
[COMMUNICATION]
JBY-25S-1A3F(LF)(SN) (JST Mfg Co, Ltd)
Pin No Signal Flow of signals Remarks
1 INCOM 1 OUT (H) CCU → SYSTEM 0 dBm, 600 Ω (4W)/1 V [p-p] (RTS)
Select “4W” or “RTS” and “INCOM1” or “INCOM2” with the “INCOM switches” on the
rear panel
[When “RTS” is set, terminate pins 1 and 3 of the connector using a terminating
resistor (200 Ω)]
2 INCOM 1 OUT (C) CCU → SYSTEM
3 INCOM 1 (GND)
4 INCOM 1 IN (H) SYSTEM → CCU
5 INCOM 1 IN (C) SYSTEM → CCU
6 PGM IN (H) SYSTEM → CCU
0 dBm/–20 dBm, 600 Ω
Select “0dB” or “20dB” for the GAIN PGM item on the INCOM/MIC screen
(pages 21 and 31)
7 PGM IN (C) SYSTEM → CCU
8 PGM IN (GND)
9 GND
10 NC
11 R TALLY IN(H) SYSTEM → CCU ON: Short/TTL(H)/24 V
Refer to “Example of tally input connections”
OFF: Open/TTL(L)/24 V
12 R TALLY IN(C) SYSTEM → CCU
13 GND
14 INCOM 2 OUT (H) CCU → SYSTEM 0 dBm, 600 Ω (4W)/1 V [p-p] (RTS)
Select “4W” or “RTS” and “INCOM1” or “INCOM2” with the “INCOM switches” on the
rear panel
[When “RTS” is set, terminate pins 14 and 16 of the connector using a terminating
resistor (200 Ω)]
15 INCOM 2 OUT (C) CCU → SYSTEM
16 INCOM 2 (GND)
17 INCOM 2 IN (H) SYSTEM → CCU
18 INCOM 2 IN (C) SYSTEM → CCU
19 NC
20 NC
21 NC
22 NC
23 NC
24 G TALLY IN (H) SYSTEM → CCU ON: Short/TTL(H)/24 V
Refer to “Example of tally input connections”
OFF: Open/TTL(L)/24 V
25 G TALLY IN (C) SYSTEM → CCU
12.4 kΩ
3.9 kΩ
5 V
AK-HCU200
R TALLY IN (H)
G TALLY IN (H)
R TALLY IN (C)
G TALLY IN (C)
12.4 kΩ
3.9 kΩ
5 V
AK-HCU200
R TALLY IN (H)
G TALLY IN (H)
R TALLY IN (C)
G TALLY IN (C)
Example of tally input connections
Voltage withstand: Max 24 V DC
Current: Max 20 mA
(Max current 20 mA)
or
(Max voltage 24 V)
(Max current 20 mA)
“TALLY switch” on the rear panel: V
“TALLY switch” on the rear panel: MAKE