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