Simplex 4100ESi Installation Instructions

Wiring
Topologies
Step 3: Wiring the MX Digital Loop Card to Addressable Devices
The MX Loop is run as a loop from the MX Digital Loop Card out to the MX Devices and
back to the MX Digital Loop Card. Normally T-Tapping or spurs are not used (as a single
fault will stop the devices working). However, if all the devices have the same function
and map to the same zone then a spur is permitted. The spur can be connected directly to
the loop - as long as all devices on the spur and between the nearest isolators map to the
same zone. Otherwise, insert a 545.800.004 LIM800 SCI into the loop and wire the spur
cable off the S+, S- terminals. This is shown in Figure 5.
The earlier 4100-6077LIM included two LIM800 short circuit isolators at the start and
end of the loop to provide short circuit protection. These are not shown in Figure 5. These
are not required with the 4100-6077AU as it includes short circuit protection.
Full details of the MX Device and Loop wiring can be found in LT0432 4100ESi Field
Wiring Diagrams.
Figure 5. MX Digital Loop Wiring
+
+
-
-
LOOP RIGHT
MX DIGITAL
LOOP CARD
LOOP LEFT
DET
DET*
DET
DET
DET
MX DIGITAL ADDRESSABLE LOOP WITH ISOLATORS
ADDRESSABLE
DETECTOR SPUR
CONVENTIONAL
DETECTOR SPUR
EOL
DET*
MZAM CP
PLANT
RIAM
LIM
DII
DET
DET
EOL
CONTACT
ADDRESSABLE
DETECTOR SPUR
NOTES: 1. MAY BE CONFIGURED WITH UP TO 250 ADDRESSABLE DEVICES
2. SHORT CIRCUIT ISOLATORS (E.G., LIM800) AT START AND END OF CABLE NOT SHOWN
IB W/
DET
IB W/
DET
KEY
DET ADDRESSABLE DETECTOR
DET* CONVENTIONAL DETECTOR
IB ISOLATOR BASE
CP CALL POINT
RIAM RELAY IAM
LIM LINE ISOLATOR MODULE
DII DUAL INPUT IAM
MZAM MONITOR ZAM
EOL END-OF-LINE RESISTOR
9 LT0638 Iss 1.1 7/2017

Simplex 4100ESi Specifications

General

Brand	Simplex
Model	4100ESi
Category	Fire Alarms
Language	English