Det-Tronics EQP Fire and Gas Detection/Releasing System - Manual (Page 54)

3-35 14.1 95-8533
Channel Connectors, Terminals 1 to 24
Terminals A, B & C
Channels 1 to 8 Input / Output Terminals
Refer to individual wiring configurations for terminal
descriptions. Only channel 1 is shown in each
diagram. The information is typical for channels 2-8.
Unsupervised Input
Connect external system wiring to the appropriate
terminals. See Figure 3-39.
Input to the DCIO consists of one or more normally
open or normally closed switches.
NOTE
An EOL resistor is not required.
NOTE
No connection should be made to the “+ Supply”
terminal.
+ SUPPLY A
IN– / OUT+ B
COMMON C
1
2
3
B2090
Figure 3-39—Unsupervised Input Configuration
CHANNEL 8
CHANNEL 7
CHANNEL 6
CHANNEL 5
CHANNEL 4
CHANNEL 3
CHANNEL 2
CHANNEL 1
COM
6
5
4
3
2
1
COM 2 SHLD
COM 2 B
COM 2 A
COM 1 SHLD
COM 1 B
COM 1 A SHLD
B
A
SHLD
B
A
LON FROM
PREVIOUS DEVICE
LON TO
NEXT DEVICE
POWER
6
5
4
3
2
1
SHLD
–
+
SHLD
–
+ SHLD *
–
+
SHLD *
–
+
24 VDC
INPUT VOLTAGE
24 VDC
INPUT VOLTAGE
EQ3700DCIO
TO
EARTH
GROUND
B2097
+ SUPPLY A
IN–/OUT+ B
COMMON C
+ SUPPLY A
IN–/OUT+ B
COMMON C
+ SUPPLY A
IN–/OUT+ B
COMMON C
+ SUPPLY A
IN–/OUT+ B
COMMON C
+ SUPPLY A
IN–/OUT+ B
COMMON C
+ SUPPLY A
IN–/OUT+ B
COMMON C
+ SUPPLY A
IN–/OUT+ B
COMMON C
+ SUPPLY A
IN–/OUT+ B
COMMON C
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
*
SHIELDS ON POWER WIRES ARE OPTIONAL
UNLESS REQUIRED BY LOCAL CODES.
Figure 3-38—DCIO Module Wiring Terminal Configuration