Receiving & Installation 3-11MN1853
Discrete I/O Connections
The 25 pin “Discrete I/O” connector (Figure 3-5) contains the Input 1–8, Output
1–8 and OPTO 44/88 connections. (See Figures 3-15, 3-16 and the Section
“OPTO 44/88” description.
Figure 3-15 Opto Isolated Input Connections (Inputs 1–8)
Inputs 1–8
(Isolated)
Com
470 Ù
Opto
Isolator
+5VDC (Isolated)
Common
(Isolated)
Figure 3-16 Programmable Output Connections
Outputs 1–8
(Programmable)
Com
10kÙ
Opto
Isolator
Jumper
12V
Factory installed jumper for 12VDC pull–up operation.
Maximum current sink capability is 100mA per output
and 350mA maximum from internal 12VDC supply.
Outputs 1–8
(Programmable)
Com
10kÙ
Opto
Isolator
(Remove Jumper)
12V
P–Up
P–Up
External
+24VDC
Supply
+24V
Com
Standard 12V Output Connections Optional 24V Output Connections
Remove factory installed jumper from terminal P–Up.
Connect an external 24VDC supply to terminals P–Up
and Com. (Terminal P–Up must be positive).
Limits Connections
Figure 3-17 Opto Isolated Input Connections (Inputs 1–8)
Isolated Inputs
(Home, ET+, ET–)
Com
715 Ù
Opto
Isolator
+5VDC (Isolated)
Common
(Isolated)
Limits
Drive Color
12V
Com
ET±
Brown
Green
White/Red
Limit
+V
0V
Output