Nortec Industries NHTC Series - Manual (Page 41)

10-50
Page 4
2008-02-18
WID NHTC Nortec LINKS 2 Option
Supplemental Wiring Diagram
Diagram No. 2525757 Rev. A Aug 1, 2007
Nortec LINKS 2
Terminal Strip
(Unit 1)
External wiring ‘by others’
- 18 to 24 AWG stranded
- Twisted pair, shielded
Shi
e
ld
Net - Net +
To BMS
Network
To Units
2 to 13
A B
RJ-45
EIA-232
Serial Port
Nortec OnLine
Module
RJ-12
1
External
Internal
NHTC
Processor
Board
J1
J5
J3
J2 J4
Nortec LINKS 2
Module
RJ-45
Note:
Use Router WAN port when employing an internet
connection for OnLine.
Use A and B terminals for Johnson N2 and BACnet/MSTP
feedback.
User Interface
Ports
24 VAC HOT
AC GND
DC GND
9 VDC OUT
9 VDC Input
+9V on center pin
4-Port Router
1 2 3 4
LAN Ports
WAN Port
Customer Internet
Connection
(OnLine Interface)
DC Power
Supply
Figure 3. Wiring Diagram