Johnson Controls Metasys equipment controllers and expansion modules

Hardware and installation

Metasys equipment controllers and expansion modules

are encased in a durable plastic housing. The plastic

housing may eliminate the need for a separate enclosure

for plenum-rated construction. Check specific controller

documentation and regional, national, and local code

requirements for appropriate applications.

Metasys CG, CV family devices feature bright, color-coded

LEDs, visible on the controller cover, that indicate the

supply power, communications bus, and EOL switch

status, as well as a variety of fault conditions to aid

troubleshooting the controller and bus.

The equipment controllers ship with a default state that

can assist in validating the wiring of the input and output

terminals prior to download of an application file. When

the controller is powered on in this state, the Fault LED

will flash in a pattern of two quick blinks and then a long

pause.

CG, CV family devices feature removable, color-coded,

keyed, and labeled terminal block plugs for the input

and output, supply power, and communications bus

terminations.

CG, CV family devices feature rotary switches that allow

you to set a valid and unique device address for each

device on the bus. A blank space is included on the cover

for recording the device address.

Integral mounting clips and a DIN rail track on the back

plate of the CGM controllers and XPM devices allow you

to easily mount the device either on a horizontal section

of 35 mm DIN rail, or screw mount on a flat surface with

three integral mounting clips on the device.

An integral EOL switch on MS/TP devices allows you to

enable the device as a bus terminating device, which

when properly configured, reduces reflected noise on the

bus and improves bus communication.