ETC IRIDEON, Инструкция по установке и эксплуатации

Страница: 24 / 84

20 Installation
Astronomical Time Clock (ATC)
The Astronomical Time Clock (ATC) is available as rack mount, 120 or 230
volts. The ATC resides on the same data run as the Remote Stations.
Wiring for the ATC with Remote Stations should be a single run daisy
chain configuration with a 120 ohm termination resistor between the two
data lines (+&-) after the last station. Recommended maximum overall
cable length for the remote control run cannot exceed 1000 feet total.
N o t e :
The following installation instructions are for new system installations
only. ATC installation instructions See “For existing MCP/Remote
Station installations” on page 61. in this manual.
Step 1: Mounting
N o t e :
The ATC should be mounted in the same proximity as the Master
Control Processor (MCP) for easy installation and wiring.
a. For rack mount, secure the two mounting brackets on the
sides of the ATC into a 4U space on a standard 19” rack.
b. For installations requiring a wall mount unit, remove the rack
mount brackets from the unit, then remove the front panel
and secure unit to the wall as shown.
C A U T I O N :
This unit is not designed to recess into the wall.
N o t e :
Knockouts are located on top and bottom of the ATC to facilitate hookup
Attach
to wall
at these
points
Attach
to wall
at these
points