Technical Information; General; Agd-2944-8 Led Driver; Ram-2944-24 Annunciator Strip - Mircom RAM-2944LCD Installation And Operation Manual

1.0

Technical Information

1.1

General

The RAM-2944LCD Annunciator Driver is capable of controlling up to 576 LEDs, as 192 zones
of 3 LEDs each (Alarm, Supervisory, Trouble), for use with columnar or graphic annunciators.
Two optional LCD displays are available, an 80 character (4 x 20) display display and a larger
display twice that size. Both can be used to display text messages.
The RAM-2944LCD uses the NWM-2944-R Network Communications Board for network
interface. The RAM-2944LCD can use all variants of the NWM-2944-R board. The RAM-
2944LCD may also use the FM-2200-R1 Fiber Optic Modem for connecting a fiber network
between panels.
The RAM-2944LCD uses the AN4 program for connection to FX-2200 networks.
The LEDs are interfaced to the Annunciator Driver using the RAM-2944-24 Annunciator Strip,
the RAM-2944-8 Annunciator Strip or the AGD-2944-8 LED Driver.
1.2

AGD-2944-8 LED Driver

The AGD-2944-8 LED Driver drives up to 24 LEDs. There is a 50 pin connector for connection
to a wire-wrap socket. The LEDs would be connected to the wire-wrap legs of the socket.
1.3

RAM-2944-24 Annunciator Strip

The Annunciator Strip contains 24 sets of zone indicating LEDs. Individual LEDs are provided
to display alarm, supervisory and trouble conditions by zone. The LED functions, from the left,
are: Alarm (red), Supervisory (yellow or amber) and Trouble (yellow).
1.4

RAM-2944-8 Annunciator Strip

The Annunciator Strip contains 8 sets of zone indicating LEDs. Individual LEDs are provided
to display alarm, supervisory and trouble conditions by zone. The LED functions, from the left,
are: Alarm (red), Supervisory (yellow or amber) and Trouble (yellow).
1.5

Technical Specifications

Table 1 Technical Specifications
RAM-2944LCD
Voltage 24 VDC
Normal Current no LCD: 50 mA
LCD: 75 mA
Max Current 500 mA
Operator Key SPST N/O
RAM-2944-8 AGD-2944-8
24 VDC 5 VDC (Optional)
5 mA 10 mA
125 mA 250 mA
RAM-2944-24
24 VDC
10 mA
250 mA
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