Programming the GR 2400 System.
The Programmer is the front end of a system that
contains the following parts:
a) Astronomical Time Clock with 32 Schedules.
b) Control boards that operate relays.
c) Switches that operate the relays.
d) Digital Switch Input cards f or dry contacts from
other systems. (DigiLink Card.)
e) Photocell input cards.
f) T hermostat Bus Interface.
g) Other Bus interface cards (To dimming systems
and EMS Systems.)
More items may be added in the f uture.
There is an RS 232 input socket on the back of the
DTC Clock. The clock may be pulled off its mount-
ing bracket to see the RJ 12 (6 position) Phone
type connector. This can be connected to a
modem or a PC. The modem allows the f actory or
another system to program the clock remotely.
Additionally new system upgrades can be down
loaded from the factory to add more features as
they become available. The Purchase of a modem
also buys free lifetime factory programming.
Factory Pre Programming
The GR 2400 System comes pre programmed with
the program shown at the beginning of the manual.
If the f actory has been provided with sufficient
information the system will be pre programmed
exactly to your specs.
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Clock
Connector (8 wire
Telephone RJ45)
RS232 for Modem
or Computer (6 Wire
Telephone RJ 12)
Back Side of DTC 2400