Honeywell H-S81-HS Operation Manual page 90

Parts of the H-S81-HS System

S81-E2001-1 Bus
The module is connected to a S81-T8003-1 termination module with 8 termi-
nals with a 20-way flat cable.

S81-E2001-2 Bus
The module is connected to the field terminal block with the S81-CCT6 6-conductor
multi-polar cable.
Function
TX DATA RS232 TX
RX DATA RS232 TX
GND G
Positive RS485 +
Negative RS485 -
GND G
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Standard Connection Diagrams
NOTE: Connect a 120 Ohm, ¼ watt resistor between L+ and L- terminals on the weighing end
module to balance the RS485 bus.
S81-MOD-BIL Weighing Module
The S81-MOD-BIL module, together with the S81-F7008-1 module, allows to monitor cylinder
load status and to signal even the slightest extinguishing gas leakage without delay. The weighing
module communicates with the control module through the RS485 bus that accepts up to 32 mod-
ules. Two thresholds, pre-alarm and alarm, can be set per weighing module when programming.
90
Termination with Flat Cable
∅
1
∅
2
∅
3
∅
4
∅
5
∅
6
∅
7
∅
8
S81-T8003-1
Figure 2.45 Field Connections
Figure 2.46 RS485 Standard Connection Diagram
H-S81-HS Installation & Operation Manual — P/N LS10114-000HI-E:A 2/24/2015
Termination with Multi-conductor Cable
White
1
Brown
2
Green
3
Yellow
4
Gray
5
Pink
6
7
8 S81-CCT6
I/O modules