90 H-S81-HS Installation & Operation Manual — P/N LS10114-000HI-E:A 2/24/2015Parts of the H-S81-HS System I/O modules S81-E2001-1 BusThe module is connected to a S81-T8003-1 termination module with 8 termi-nals with a 20-way flat cable. S81-E2001-2 BusThe module is connected to the field terminal block with the S81-CCT6 6-conductormulti-polar cable.Standard Connection DiagramsS81-MOD-BIL Weighing ModuleThe S81-MOD-BIL module, together with the S81-F7008-1 module, allows to monitor cylinderload status and to signal even the slightest extinguishing gas leakage without delay. The weighingmodule 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.Function Termination with Flat Cable Termination with Multi-conductor CableTX DATA RS232 TX ∅ 1S81-T8003-11 WhiteS81-CCT6RX DATA RS232 TX ∅ 2 2 BrownGND G ∅ 3 3 GreenPositive RS485 + ∅ 4 4 YellowNegative RS485 - ∅ 5 5 GrayGND G ∅ 6 6 Pink--- ∅ 7 7--- ∅ 8 8Figure 2.45 Field ConnectionsFigure 2.46 RS485 Standard Connection DiagramNOTE: Connect a 120 Ohm, ¼ watt resistor between L+ and L- terminals on the weighing endmodule to balance the RS485 bus.