Orion System VCM-X/RNE Operator Interfaces - Manual (Page 5)

VCM-X / RNE Operator Interfaces Technical Guide
SYSTEM CONNECTION
5
Modular System Manager
NOTE: The Modular System Manager can be used with the
VCM-X Controller, but not with the RNE Controller. The
interface options for the RNE Controller are the Modular
Service Tool, the System Manager Touch Screen, or
Prism II Software.
As previously described, when you are connecting the Modular Sys-
tem Manager to a Networked System, the Modular System Manager
is connected to the communications and power loop of the system via
modular cables. These cables simply plug into the System Manager
board and to any device with modular connectors on any local loop
on the system. Devices with modular connectors include the Power/
Comm Distribution Board, VAV/Zone controller, and MiniLink Polling
Modular System Manager
Figure 4: Modular System Manager - Networked
Device. By using these plug-in connections, wiring errors are virtually
eliminated and system installation is fast and easy. See Figure 4 below
for typical connection information. See Figure 5 on page 6 for typical
Power/Comm board wiring and connection information.
When the System Manager is to be connected to a Stand Alone system,
a 12-foot cable with modular connectors on one end and stripped wire
ends on the other end is provided for this purpose. This is used to fa-
cilitate connecting communications and power wiring to the Modular
System Manager from a 24 VAC power source and to the HVAC unit
controller communication wiring terminals. See Figure 6 on page 7
for wiring details. If the supplied cable wire is not long enough for
your installation, a standard modular cable of the correct length can
be purchased through WattMaster and one of the modular connectors
can be cut off to allow for the transformer and communication terminal
wiring connections. It is recommended that you do not splice the com-
munications wire if at all possible. The transformer should be rated at
6 VA minimum power output.