Rockwell Automation 1771-IS 5V DC INPUT MOD - Manual (Page 44)

Appendix
A
i
Specifications
Module Inputs
Up to four 4–digit BCD
Thumbwheel Switches or
Up to six 3–digit BCD
Thumbwheel Switches or
Up to 72 Discrete Contact
Switches (Maintained or
Momentary contact)
Diode Decoupling is required
for more than 8 Switch
Contacts
Module Location
Any Bulletin 1771 I/O Rack
location except the left–most
slot
Switch Power Requirement
Supplied by the module
Nominal 13 mA @ 5V DC
per switch
Module Current Requirement
800 mA max @ 5V DC from
the backplane
Maximum Switch Cable Distance
400 feet
Ambient Temperature Rating
0–60 0 C Operational
–20 to +85 0 C Storage
Humidity
5% to 95%
(without condensation)
Keying
Keying positions are between
8 and 10 and between 26 and
28