GE 8086-FC-20 20 + 24 pin cables for 8619 (2m)
An 8410-NS-PS Node Services Power Supply Monitor Module must beinstalled on the Controller Carrier to make use of this capability. If an
8410-NS-PS is not being used, then it is not necessary to make any
connections to the PSU Power Fail terminals
Terminal pairs 1, 2, 4 and 5
These terminal pairs are used to monitor the AUX (or power fail)
output from up to four 8914-PS-AC power supplies.
The upper terminal of each pair is connected directly to the AUX
terminal of the 8914-PS-AC that is to be monitored. It is not
necessary to connect the lower terminal - as this is internally
connected to the BFP0V terminal on the Carrier.
If any of the 8914-PS-AC supplies are acting as redundant pairs,
then these should be connected to terminal pairs 1 and 2 and/ or
terminal pairs 4 and 5.
If a pair is unused, a shorting link must be placed between the upper
and lower terminals, otherwise the Power Supply Monitor Module will
continuously report a fault.
Terminal pair 3
The upper terminal of this pair should be connected to the 24V dc
supply of the 8914-PS-AC supply monitored by terminal pairs 1 and
2. The lower should be connected to the 24Vdc supply of the 8914-
PS-AC monitored by terminal pairs 4 and 5.
If a single pair of 8914-PS-AC power supplies is being monitored,
then it is only necessary to make single connection to appropriate
terminal of pair 3.
Terminal pair 6
This terminal pair is unconnected and should not be used.

Terminal pairs 7 and 8
These terminal pairs are used to monitor the AUX (or power fail)
output from up to two 8913-PS-AC power supplies.
The upper terminal of each pair is connected directly to the AUX
terminal of the 8913-PS-AC that is to be monitored. It is not necessary
to connect the lower terminal - as this is internally connected to the
GND terminal on the Carrier.
If a pair is unused, a shorting link must be placed between the upper
and lower terminals, otherwise the Power Supply Monitor Module will
continuously report a fault.
Terminal pair 9
If a Railbus Isolator (8922-RB-IS) is not used in the node, this terminal
pair must be fitted with a shorting link to prevent an alarm condition
being signalled to the Controller.
If a Railbus Isolator is used, internal connections are made to monitor
the failure of any power supplies used to provide power for the
Intrinsically Safe IO Modules.
ELECTRICAL CONNECTIONS
Railbus connectors .....................................female in, male out
Cable screens/shield connections...M4 screw terminals (x34)
Bussed field power supply connectors.........8-pin male (x2)
The two 8-pin connectors provided at the top rear of the carrier
connect power supplies for ‘field power’. These supplies are routed
through I/O modules that require power for their field circuits.
MECHANICAL
Dimensions .................................342 (w) x 170 (d) x 22 (h)mm
Weight ..............................................................................680g
Mounting methods..................................Flat panel or DIN rail
DIN-rail types
..........‘Top hat’ 35 x 7.5mm rail or 35 x 15mm rail to EN 50022
........................................................G-section rail to EN 50035
Note: For applications with up to 4 IO Modules, it is possible to
use the 4-module Carrier (8710-CA-04). For further information,
contact MTL.