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The following connections are provided for the alarm/communications interface card:
• A 2-wire communications connection (RS-485 or modem) for a remote programming device
• Power supply input
• One “warning” relay driver output for driving an external relay
• One “alarm” relay driver output for driving an external relay
• A second 2-wire RS-485 communications connection for a local programming device
• An Ethernet connection
See Appendix B10 for wiring details for a CR 2000+ card rack.
1.2.7 CR 2000-CPS CARD RACK
The CR 2000-CPS card rack is similar to the original CR 2000 card rack (see Section 1.2.5),
except it is modified so that each of the ten control modules use a common power supply
connection originating at the alarm/communications interface card in the left-most slot.
1.2.8 CR 2000-CPS+ CARD RACK
The CR 2000-CPS+ card rack is similar to the CR 2000+ card rack (see Section 1.2.6), except it
is modified so that each of the ten control mod-ules use a common power supply connection
originating at the alarm/communications interface card in the left-most slot.
1.2.9 CT 2000 CURRENT TRANSFORMER AND CONTRACTOR
SWITCHING MODULE
The CT 2000 current transformer and contactor switching module is used by a control module
that implements a contactor as its output switch. The control module connects to the CT 2000
via the connections on the card rack (see Appendix B1). The CT 2000 is used to measure load
and ground fault currents using internal current transformers as well as to switch an external
contactor using an internal relay.
1.2.10 CT 2000-HAZ CURRENT TRANSFORMER MODULE
A control module that implements an SSR as its output switch uses the CT 2000-HAZ current
transformer module. The control module connects to the CT 2000-HAZ via the connections on
the card rack (see Appendix B2 and Appendix B3). The CT 2000-HAZ is used to measure load
and ground fault currents using internal current transformers. The external SSR is controlled
directly by the control module via connections on the card rack.
1.2.11 BC 2000 BLANK COVER
The BC 2000 blank cover is used to cover slots in the card rack that do not contain a control
module or an alarm/communications interface card.
1.3 EXTERNAL PROGRAMMING DEVICES
The AC 2000+, CM 2000, and CM 2000+ devices require an external programming device to
view and modify their parameters and data. The type of device depends on the type of alarm/
communications interface card being used by the RAYCHEM T2000 HTC. The following
sections give details on the programming devices that may be used with each type of alarm/
communications interface card.
1.3.1 AC 2000 PROGRAMMING DEVICES
When using an AC 2000 alarm/communications interface card, only the following
programming devices may be used to access the parameters and data of a
RAYCHEM T2000 HTC:
• 780/GCC-9000 Group Communications Controller
• 760/HHP-9000 Handheld Programmer
• 761 Panel Mount Programmer
IMPORTANT: When using the 780/GCC-9000 Group Communications Controller, all of the
programming devices mentioned in Section 1.3.2 can be used upstream from the GCC.
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