7-101004-01
17
Honeywell Access Systems
NS2 Configuration Guide
Fiber Converter to RS-485 Connection
Thirty-one NS2 panels for each drop line.
NStar Server
N-485-PCI-2
NS2
Panel
Fiber Wire
10,000 Ft.
COM Port
RS-232 (50 Ft. Max.)
EG
EG
EG
EG
EG
EG
Refer to 485-PCI/NS2 Panel
Connection Detail diagram.
S1: ON
S2: ON
S3: ON
S4: ON
S5: ON
S6: OFF (Ack/Nak)
S7: ON
S8: OFF (19,200 Baud Rate)
DIP Switch Settings
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)
RS-485
(4000 Ft. Max.)
It is recommended to
earth ground (EG)
each NS2 enclosure
individually.
RS-485 Comm.
RXD
PWR
TXD
RS-485 Po)
RS-485 Negitive (-)
Fiber TXD
Fiber RXD
FC485
RS-485 Fiber Converter
TB9-1 (RS485 +)
TB9-2 (RS485 -)
NS2 Panel
RS-485 Drain Wire Floating
TB9-3 (RS485 Comm)
Fiber Wire
10,000 Ft.
TB9-1 (RS485 +)
TB9-2 (RS485 -)
TB9-3 (RS485 Comm)
NS2 Panel
RS-485 Drain
not connected here
(connected at panel side)
RS-485 Comm.
RXD
PWR
TXD
RS-485 Po)
RS-485 Negitive (-)
Fiber TXD
Fiber RXD
FC485
RS-485 Fiber Converter
NS2
Panel
NS2
Panel
RS-485 Comm.
RXD
PWR
TXD
RS-485 Po)
RS-485 Negitive (-)
Fiber TXD
Fiber RXD
FC485
RS-485 Fiber Converter
TB9-1 (RS485 +)
TB9-2 (RS485 -)
TB9-3 (RS485 Comm)
NS2 Panel
RS-485 Drain
not connected here
(floating)
RS-485 Comm.
RXD
PWR
TXD
RS-485 Po)
RS-485 Negitive (-)
Fiber TXD
Fiber RXD
FC485
RS-485 Fiber Converter
(485 Common)
(RED/WHITE)
(BLACK/GREEN)
N-485-PCI-2
RS-485 Drain Wire to earth ground
See RS-485
Cable note.
4,000 ft. (1,200 m) max, 24 AWG, 2 twisted pairs with
shield, 120 ohm, 23 pf (NCI part no. NCP2441-TN)
NS2 Panel
TB9-1 (RS485+)
TB9-2 (RS485-)
TB9-3 (RS485 COM)
RS-485 Drain wire
grounded
FC485
RS-485 Positive (+)
RS-485 Negative (-)
RS-485 Common
RS-485 Drain not
connected
NS2 Panel
TB9-1 (RS485+)
TB9-2 (RS485-)
TB9-3 (RS485 COM)
RS-485 Drain wire
grounded
RS-485 Cable