Honeywell NETAXS NX4L1

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NetAXS™ NX4L1 Installation Guide
System Configuration
5.3 RS-485 Connections with Multidrop Panels at Both Ends of the Cable
You can connect Multidrop panels at both ends of an RS-485 cable via either a NetAXS panel or a
PCI-2 device. This connection has not been approved by UL.
Figure 20: RS-485 Connection via NetAXS with Multidrop Panels at Both Ends
COM Port
NetAXS
Panel
EG
EG
DIP Switch Settings
S1-S5: Panel Address
S6: ON
J36 OPEN
J37 OPEN
DIP Switch Settings
S1-S5 Panel Address
S6: OFF
J36 OPEN
J37 OPEN
It is recommended to Earth Ground (EG) each NetAXS enclosure individual
Refer to
NetAXS/NetAXS
Panel Connection
Detail diagram
NetAXS
Panel
EG
EG
DIP Switch Settings
S1-S5 Panel Address
S6: OFF
J36 CLOSED
J37 CLOSED
NetAXS
Gateway
See
RS-485
Cable
Only Earth Ground (EG)
one side of cable
NetAXS
Panel
EG
EG
DIP Switch Settings
S1-S5 Panel Address
S6: OFF
J36 OPEN
J37 OPEN
NetAXS
Panel
EG
EG
DIP Switch Settings
S1-S5 Panel Address
S6: OFF
J36 CLOSED
J37 CLOSED
Only Earth Ground (EG)
one side of cable
RS-485 (4,000 ft.)
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)
Terminal