Rs-485 Connection Via Netaxs; Figure 19: Rs-485 Connection Via Netaxs - Honeywell NETAXS NX4L1 Installation Manual

NetAXS™ NX4L1 Installation
System Configuration

5.2 RS-485 Connection via NetAXS™

This connection supports thirty-one NetAXS™ Access Controller panels for each drop line. It has
been reviewed by UL. However, because UL has reviewed the NetAXS panel only as a standalone
system, the computer terminal and NetAXS gateway panel appear in this illustraton only to show the
installation and programming of the NetAXS panel.

Figure 19: RS-485 Connection via NetAXS™

Terminal
4,000 ft. (1,200 m) max, 24 AWG, 2 twisted pairs
32 www.honeywell.com
RS-232 (50 Ft. Max.)
COM Port
RS-485 Cable
NetAXS Panel
TB7-1 (RS485+)
TB7-2 (RS485-)
TB7-3 (RS485 COM)
120 ohm, 23 pf (HAS part no. NCP2441-
NetAXS
Getaway
E
Only Earth Ground (EG)
one side of cable
EG
It is recommended to Earth Ground (EG)
each NetAXS enclosure individually
RS-485 (4,000 Ft.)
etAXS
etail
s
See RS-485
Cable Note
EG