Specifications

SQ: 7-55
RS3: Service Quick Reference Guide
Input/Output
MAIO Termination Panel Jumpers
Jumper EffectValue
V--, SH & CH
jumpered (4 tab
jumper installed)
Loop power negative and field wiring shields
connected to chassis ground. Use with LPMs.
(New factory setting.)
TB18
SH to CH
jumpered (4 tab
jumper straddling
TB18 or 2 tab
jumper installed)
Field wire shields connected to chassis ground.
Use with locally grounded source of loop power.
(Old factory setting with 2 tab jumper.)
SH to CH open
(Jumper
removed)
Allows connecting shield to a different ground
reference than chassis.
TB19
TB20
TB21
TB22
Jumpers fully
installed, absent,
or in ”holder for
loop position”.
Fully installed: Power at TBA used for loop power
Holder position: Loop power connected at TB17
Absent: LPMs used for loop power