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13
Honeywell Access Systems
NS2 Configuration Guide
RS-485 Short Haul Modem Connection
Thirty-one NS2 panels for each drop line.
EG
NS2
Panel
NS2
Panel
NStar Server
RS-232, 50 Ft. Max.
RS-232, 50 Ft. Max.
N-485-PCI-2
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)
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)
It is recommended to earth ground (EG)
each NS2 Enclosure individually.
Only Earth Ground (EG)
one side of cable.
EG
EG
EG
Refer to 485-PCI/NS2
Panel Connection
Detail diagram.
RS232 Cable
2 TX
3 RX
DTE
(Straight)
2 (TX)
3 (RX)
7 (GND)
DCE
(Null)
2 (RX)
3 (TX)
7 (GND)
PC
(DB-9)
MODEM
5 Comm
or
RS232 Cable
2 TX
3 RX
DTE
(Straight)
2 (TX)
3 (RX)
7 (GND)
DCE
(Null)
2 (RX)
3 (TX)
7 (GND)
PC
(DB-9)
MODEM
5 Comm
or
Male 9 Pin Male 25 Pin
5279.9 Feet
SHM-B-ASYNC
Short Haul Modem
SHM-B-ASYNC
Short Haul Modem
4,000 ft. (1,200 m) max, 24 AWG, 2 twisted pairs with
shield, 120 ohm, 23 pf (NCI part no. NCP2441-TN)
RS-485
Red/White
Black/Green
RS-485 COM
NS2 Panel
TB9-1 (RS485+)
TB9-2 (RS485-)
TB9-3 (RS485 COM)
NS2 Panel
TB9-1 (RS485+)
TB9-2 (RS485-)
TB9-3 (RS485 COM)
RS-485 Cable
See RS-485
Cable note.