WattMaster MG331-21-VAVCAV - Manual (Page 13)

Form: WMS-MG364-22MiniLinkPollingDevice-1B.doc
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VAV System
Description
The MG364-22 MiniLink Polling Device is
a network controller that is used to inte-
grate multiple local communication loops
into a network communications system.
“Network” loop terminals on the MiniLink
Polling Device are designed to be con-
nected to the CommLink II and to other
MiniLink Polling Devices on the ”Network”
communications loop. “Local” loop termi-
nals are designed to be connected to
controllers installed on the “Local” com-
munications loop.
The MiniLink Polling Device is provided
with a 2 wire terminal block for connection
to the required 24 VAC source(by others).
It also has (2) 3 wire terminal blocks for
communications wiring. One of the termi-
nal blocks is field connected to the “Local”
communications loop and the other is
field connected to the “Network” commu-
nications loop.
The MiniLink Polling Device utilizes token
passing communication architecture. The
MiniLink Polling Device is designed to
serve as the local communications loop
master. This means that it is responsible
for sending the token to all the controllers
on the local communications loop. Net-
work communications are of the RS-485
type operating at 19,200 baud. Local
communications are also of the RS-485
type and operate at on systems requiring
override or alarm indication. It also pro-
vides tenant-logging capabilities for the
WattMaster VAV system.
Mounting
The MiniLink Polling Device is factory
mounted in a galvanized sheet metal en-
closure. Mounting holes are provided in
the enclosure for surface mounting.
Technical Data MGE364-22 – MiniLink
Polling Device
Power 24 Volt AC System Connection Molex® Connectors & Terminals
Power Consumption 6VA Maximum Network Connection RS-485
Operating Temp 10 ° F to 149 ° F Protocol HSI Open Protocol Token Passing
Operating Humidity 90% RH Non-Condensing Housing Material 22 Ga. Galvanized Steel
Communications RS-485 - 9600 Baud, Local Communications RS-485 - 19200 Baud, Network
3 Year Warranty WattMaster reserves the right to change specifications without notice
MG364-22– MiniLink
Polling Device
MiniLink Polling Device Is Supplied Factory Mounted To
Control Enclosure. Cover Shown Removed For Clarity