VAR4 – Installation Guide
Issue: 02 complete, approved
Page 14 of 20
CONTROL PORT 1: Control Port (Contacts 1 to 10 and other controls)
ALL-CALL-ONLY LED -2
10
9
8
7
6
13
12
11
18
17
16
15
14
23
22
21
20
19
25
24
5
4
3
2
1
CONTACT-1
CONTACT-2
CONTACT-4
CONTACT-6
CONTACT-8
CONTACT-3
CONTACT-5
CONTACT-7
CONTACT-10
CONTACT-9
0V
COM
N/0
N/C
FAULT RELAY
ALL-CALL-ONLY LED-1
SPEAK-NOW LED-2
SPEAK-NOW LED-1
REMOTE
FAULT-1
REMOTE
FAULT-2
ALL-CALL-1
(FIRE MIC-1 PTT)
ALL-CALL-2
(FIRE MIC-2 PTT)
AUX POWER
Standard 25-way D connector (female)
Pin No
Signal
Description
1 CONTACT-1
Analogue Contact 1, internally pulled up to 5 V by 4k7
Ω
2 CONTACT-3
Analogue Contact 3, internally pulled up to 5 V by 4k7
Ω
3 CONTACT-5
Analogue Contact 5, internally pulled up to 5 V by 4k7
Ω
4 CONTACT-7
Analogue Contact 7, internally pulled up to 5 V by 4k7
Ω
5 CONTACT-9
Analogue Contact 9, internally pulled up to 5 V by 4k7
Ω
6 0V
0
V
7
ALL-CALL-2 (FIRE MIC-2 PTT) All-Call PTT (Input 2 Fire Microphone, internally pulled up to 5 V by 4k7
Ω
)
8
ALL-CALL-1 (FIRE MIC-1 PTT) All-Call PTT (Input 1 Fire Microphone, internally pulled up to 5 V by 4k7
Ω
)
9
N/C
Fault relay N/C contact
10
COM
Fault relay common contact
11
ALL-CALL-ONLY LED-1
All-Call-Only LED (Input 1 Fire Microphone, open-collector)
12
ALL-CALL-ONLY LED-2
All-Call-Only LED (Input 2 Fire Microphone, open-collector)
13
REMOTE FAULT-1
Remote Fault Output 1 (open-collector)
14 CONTACT-2
Analogue Contact 2, internally pulled up to 5 V by 4k7
Ω
15 CONTACT-4
Analogue Contact 4, internally pulled up to 5 V by 4k7
Ω
16 CONTACT-6
Analogue Contact 6, internally pulled up to 5 V by 4k7
Ω
17 CONTACT-8
Analogue Contact 8, internally pulled up to 5 V by 4k7
Ω
18 CONTACT-10
Analogue Contact 10, internally pulled up to 5 V by 4k7
Ω
19
AUX POWER
Auxiliary power supply (18-36 V DC, fused at 100 mA)
20, 21
-
Not connected
22
N/O
Fault relay N/O contact
23
SPEAK-NOW LED-1
Speak Now LED (Input 1 Fire Microphone, open-collector)
24
REMOTE FAULT-2
Remote Fault Output 2 (open-collector)
25
SPEAK-NOW LED-2
Speak Now LED (Input 2 Fire Microphone, open-collector)
