The Crt-2 Terminal; Primary And Secondary Power; Multiple Terminals; Crt Function Keys - Notifier AM2020 User Manual

The CRT-2 Terminal with keyboard features an 80-column, 25-line display. Function keys allow all control panel
commands to be executed from the keyboard. Since the system control function keys (Acknowledge, Signal
Silence, and Reset) are not protected against unauthorized use by key switch or password, in order to comply
with the UL listing and applicable NFPA standards, the keyboard should be disconnected from the CRT-2 and
locked in a secure location when not being used for programming/troubleshooting of the system, or the modem
function should be enabled in System Programming to prevent the operation of the system control function keys..
(Refer to the TPI-232 Manual, Document 50372, for additional CRT-2 options.) The keyboard may remain
connected when the system is configured and operated in compliance with the NFPA standard on Proprietary
Supervising Station Fire Alarm Systems and the CRT-2 is located in the Supervising Station. No keyboard may
be connected to any remote CRT-2 unless the modem function is enabled in System Programming.

Primary and Secondary Power

The CRT-2 requires 120-240 VAC, 50/60Hz primary power. A secondary power source (battery backup) is not
provided; the use of a separate Uninterruptable Power Supply (UPS), UL listed for Fire Protective Signaling is
recommended. A UPS is required for NFPA 72 Proprietary Protected Premises Receiving Unit applications.
Electrical Specifications
Voltage: 90 - 264 VAC
Frequency: 47 - 63 Hz
Current: 0.5 - 0.2 A
Installation
Connection between the AM2020/AFP1010 and the CRT-2 is provided through an EIA-232 interface on the Serial
Interface Board (refer to Figure 5.2-1). A custom cable must be assembled for connection to the CRT-2 EIA port.
Additional CRT-2s are connected with installer provided cables (AUX on first CRT-2 to EIA port on second CRT-2,
etc.). Refer to Figure 5.3-1 for wiring instructions.

Multiple Terminals

The AM2020/AFP1010 will support up to 25 terminals installed on the EIA-232 circuit of the Serial Interface
Board. Each CRT-2 is shipped from the factory with a keyboard. This keyboard is used to program the control
panel and can only be used on one CRT-2 installed in the chain. The keyboard must either be removed or locked
after programming (except NFPA 72 Proprietary Protected Premises and Central Station Receiving Units, where
the keyboard must remain installed and functional) unless the modem function is enabled in System
Programming.

CRT Function Keys

The function keys on the CRT are labeled with special AM2020/AFP1010 commands. These keys function
identical to the keys on the DIA. For a description of these commands, refer to the Operating Chapter.
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CRT-2
The CRT-2 is factory programmed.
PAR
The PAR (Parallel), AUX, and EIA ports are
located on the back of the CRT Monitor.
NOTE
SER2-AUX SER1-EIA
Installation 15088:J 10/22/99