Rs-485 Short Haul Modem Connection Via Netaxs; Figure 26: Rs-485 Short Haul Modem Connection Via Netaxs - Honeywell NETAXS NX4L1 Installation Manual

5.8 RS-485 Short Haul Modem Connection via NetAXS™

Thirty-one NetAXS™ Access Controller panels for each drop line. It has not been reviewed by UL.

Figure 26: RS-485 Short Haul Modem Connection via NetAXS™

4,000 ft. (1,200 m) max, 24 AWG, 2 twisted pairs with
shield, 120 ohm, 23 pf (HAS part no. NCP2441-TN)
DIP Switch Settings
S1-S5 Panel Address
S6: OFF
J36: CLOSED
J37: CLOSED
EG
DIP Switch Settings
S1-S5 Panel Address
S6: ON
J36: CLOSED
J37: CLOSED
NetAXS Access Control Unit NX4L1 Installation Guide, Document 7-901099, Revision A
Terminal
RS-485 Cable
NetAXS Panels
TB7-1 (RS485+)
TB7-2 (RS485-)
TB7-3 (RS485 COM)
DIP Switch Settings
S1-S5 Panel Address
S6: OFF
J36: OPEN
J37: OPEN
NetAXS
NetAXS
Panel Panel
EG
Only Earth Ground (EG)
one side of cable
EG
It is recommended to Earth Ground (EG) each
NetAXS enclosure individually
NetAXS
CBL50
Panel
RS-232, 50 Ft. Max.
SHM-B-ASYNCH
Short Haul Modem
DCE
DTE
5279.9
Foot
See RS-485
cable note
EG
SHM-B-ASYNCH
Short Haul Modem
(RS-232 50 Ft. Max.)
Male 9 Pin Male 25 Pin
NetAXS™ NX4L1 Installation
System Configuration
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)
(J1 RS-232 Connector)
DN
(Jumper)
DIS
RTSIDTR
CONTROL
(S2 Loopback)
(S2 Loopback)
RTSIDTR
CONTROL
DN
(Jumper)
DIS
(J1 RS-232 Connector)
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)
39