Specifications

SQ: 7-53
RS3: Service Quick Reference Guide
Input/Output
MAIO16 Termination Panel Jumpers
Jumper EffectValue
HD18
HD19
Both at “N” (1--2) Normal single FIM operation
Both at “R” (2--3)
Redundant FIM operation
(Requires two FIMs and two communication lines)
V--, SH and CH
jumpered (4-tab
jumper installed)
Loop power negative and field wiring shields
connected to chassis ground. Use with LPMs.
(New factory setting.)
TB17
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.)
TB17
TB18
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