Honeywell NS2 Configuration Guide - Page 13
RS-485 Short Haul Modem Connection
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Honeywell Access Systems RS-485 Short Haul Modem Connection Thirty-one NS2 panels for each drop line. NStar Server RS-232, 50 Ft. Max. RS-485 Cable RS-485 NS2 Panel NS2 Panel Red/White TB9-1 (RS485+) TB9-1 (RS485+) Black/Green TB9-2 (RS485-) TB9-2 (RS485-) RS-485 COM TB9-3 (RS485 COM) TB9-3 (RS485 COM) 4,000 ft. (1,200 m) max, 24 AWG, 2 twisted pairs with shield, 120 ohm, 23 pf (NCI part no. NCP2441-TN) NS2 Configuration Guide SHM-B-ASYNC Short Haul Modem RS232 Cable PC (DB-9) 2 TX 3 RX 5 Comm MODEM DTE (Straight) DCE (Null) 2 (TX) 2 (RX) 3 (RX) or 3 (TX) 7 (GND) 7 (GND) DIP Switch Settings S1-S5: Panel Address S6: ON (RS-485 Enable) S7: N/A (Baud Rate) S8-S9: OFF (Bias) S10: ON (485 EOL) DIP Switch Settings S1-S5: Panel Address S6: ON (RS-485 Enable) S7: N/A (Baud Rate) S8-S9: OFF (Bias) S10: OFF (485 EOL) 5279.9 Feet NS2 Panel NS2 Panel See RS-485 Cable note. EG EG Only Earth Ground (EG) EG one side of cable. EG It is recommended to earth ground (EG) each NS2 Enclosure individually. SHM-B-ASYNC Short Haul Modem DIP Switch Settings S1: ON S2: ON S3: ON S4: ON S5: ON S6: OFF (Ack/Nak on) S7: ON S8: OFF (19,200 Baud Rate) N-485-PCI-2 RS-232, 50 Ft. Max. Male 9 Pin Male 25 Pin Refer to 485-PCI/NS2 Panel Connection Detail diagram. RS232 Cable PC (DB-9) 2 TX 3 RX 5 Comm MODEM DTE (Straight) DCE (Null) 2 (TX) 2 (RX) 3 (RX) or 3 (TX) 7 (GND) 7 (GND) 7-101004-01 13