Honeywell NetAXS NX4S1 - RS-485 Short Haul Modem Connection Via PCI-2; Figure 23: RS-485 Short Haul Modem Connection Via PCI-2

NetAXS™ NX4S1 Installation
System Configuration
NetAXS Access Control Unit NX4S1 Installation Guide, Document 800-00008, Revision A 33
5.7 RS-485 Short Haul Modem Connection via PCI-2
This connection supports thirty-one NetAXS™ Access Controller panels for each drop line. It has not
been reviewed by UL. Note that PCI-2 units can also be wired anywhere along the drop line. See
Figure 18 on page 28 and Figure 19 on page 29.
Figure 23: RS-485 Short Haul Modem Connection via PCI-2
RS-232, 50 Ft. Max.
Terminal
RS232 Cable MODEM
PC DTE DCE
(DB-9) (Straight) (Null)
2 TX 2 (TX) 2 (RX)
3 RX 3 (RX) or 3 (TX)
5 Comm 7 (GND) 7 (GND)
RS232 Cable MODEM
PC DTE DCE
(DB-9) (Straight) (Null)
2 TX 2 (TX) 2 (RX)
3 RX 3 (RX) or 3 (TX)
5 Comm 7 (GND) 7 (GND)
SHM-B-ASYNCH
Short Haul Modem
DCE
DTE
(Jumper)
DN
DIS
RTSIDTR
CONTROL
RX +
RX -
TX +
TX -
GROUND
(Jumper)
DN
DIS
RTSIDTR
CONTROL
(S2 Loopback)
(S2 Loopback)
(J1 RS-232 Connector)
SHM-B-ASYNCH
Short Haul Modem
5279.9
Feet
EG
(RS-232 50 Ft. Max.)
Male 9 Pin Male 25 Pin
(J1 RS-232 Connector)
EG
See RS-485
cable note
DIP Switch Settings
S1-S5 Panel Address
S6: OFF
J36: OPEN
J37: OPEN
DIP Switch Settings
S1-S5 Panel Address
S6: OFF
J36: CLOSED
J37: CLOSED
DI
S1:
S2:
S3:
S4:
S5:
S6:
S7:
S8: OFF )19,200 Baud Rate)
N-485-PCI-2
Refer to 485-PCI/NetAXS Panel
Connection Detail diagram
RS-485 Cable
NetAXS Panels
TB7-1 (RS485+)
TB7-2 (RS485-)
TB7-3 (RS485 COM)
4,000 ft. (1,200 m) max, 24 AWG,2 twisted pairs with
shield, 120 ohm, 23 pf (HAS part no. NCP2441-TN)