NetAXS™ NX4S1 Installation
System Configuration
NetAXS Access Control Unit NX4S1 Installation Guide, Document 800-00008, Revision A 27
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 section only to illustrate
the installation and programming of the NetAXS™ panel.
Figure 17: RS-485 Connection via NetAXS™
COM Port
E
EG
EG
s
It is recommended to Earth Ground (EG)
each NetAXS enclosure individually
RS-485 Cable
NetAXS Panel
TB7-1 (RS485+)
TB7-2 (RS485-)
TB7-3 (RS485 COM)
4,000 ft. (1,200 m) max, 24 AWG, 2 twisted pairs
120 ohm, 23 pf (HAS part no. NCP2441-
etAXS
etail
NetAXS
Getaway
See RS-485
Cable Note
Only Earth Ground (EG)
one side of cable
RS-485 (4,000 Ft.)RS-232 (50 Ft. Max.)
Terminal
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