112
Hardware Installation—Installing the
IFC-1010/2020
The function keys on the CRT are labeled with special IFC-1010/2020
commands. These keys function identical to the keys on the DIA. For a
description of these commands, refer to the IFC-1010/2020 Operations
Technical Bulletin (LIT-448100) in this manual.
nc
nc
7123
7123 7123
To EIA Port of next
CRT or PRN
To AUX Port of CRT To EIA Port of CRT
CRT without Keyboard
Up to 24 maximum in chain.
50 feet maximum (typical) between CRTs.
CRT with Keyboard
One maximum - if using the CRT-2, the keyboard
may be located remotely with any CRT-2 in the
chain. If using the CRT-1, the CRT with keyboard
must be first in the chain and must be in the
same room as the IFC-1010/2020.
crtsibcx
Twisted Pair
Twisted Pair
Twisted Pair
Twisted Pair
P1
P4
SIB-2048
or SIB-NET
50 feet (Typical)
Wiring distance limited by cable
capacitance. See EIA-232E standard.
SIB (Connector P3)
9
10
11
12
EIA-232 Reference
Transmit to CRT
EIA-232 Reference
Receive from CRT
Figure 81: CRT to SIB Connections
Notes: Outputs are power limited (for device/circuit rating, refer to
Circuit/Device Ratings and Connections Technical Bulletin
(LIT-448160).
Connections must be made with overall foil/braided-shield twisted
pair cable.
Apply power to the CRTs prior to startup of the system, beginning
with the last CRT in the chain.
A total of 25 CRTs may be installed. Only one keyboard (shipped
with each CRT) may be used in the entire system and it may be
installed with any CRT in a chain. For all applications except
NFPA 72 Proprietary Protected Premises Receiving Units, the
keyboard is used only to program the control panel and must be
removed or kept in a locked enclosure after programming the
system.
N6
CRT Function
Keys
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