Product Description
MS-9050UD PN 52413:C 01/23/08 29
1.9.5 ANN-I/O LED Driver Module
The ANN-I/O is an LED driver module that can be used in a wide variety of applications, including
as an interface with most customized graphic annunciators. The ANN-I/O can drive up to 40
LEDs. The module is provided with a plastic enclosure for mounting inside the annunciator or
accessory box. The following sections describe hardware installation. Refer to the section titled
"ANN-BUS" on page 106 for programming information.
1.9.5.1 ANN-I/O Board Layout
Figure 1.1 illustrates the ANN-I/O board showing locations of screw terminals for connection
to the FACP, pin connectors for connecting LEDs and the DIP switch for selecting the ANN-
BUS ID number.
1.9.5.2 Specifications
• Max. ANN-BUS Voltage: 28 VDC
• Max. Current:
Alarm: 200 mA
Standby: 35 mA
Each LED: 10 mA
• Operating Temperature: 32
o
F to 120
o
F (0
o
C to 49
o
C)
• For indoor use in a dry location only
Figure 1.1 ANN-I/O Board Layout
ANN-BUS (ID#)
Address DIP
switch
ANN-BUS Connector
Terminals not used (future)
ann-IObrd.cdr
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