MS-5UD & MS-10UD Series Manual — P/N 52626:C2  1/24/2012 53
ANN-BUS Devices Installation
The LEDs are wired as illustrated in Figure 2.26.  Note that the illustration depicts only connectors 
P1 and P2.  Wiring is identical for P3 (LEDs 21-30) and P4 (LEDs 31-40). 
2.8.6  ANN-LED Annunciator Module
The ANN-LED annunciator module provides LED annunciation of general system faults and input 
zones when used with a compatible FACP.  The ANN-LED module provides alarm (red), trouble 
(yellow) and supervisory (yellow) indication for up to ten input zones.  
Canadian Applications: The ANN-LED is supplied standard with the MS-5UD-7C and MS-10UD-
7C models.  It is mounted to the dress panel included with these models.
Specifications
• Max. ANN-BUS Voltage: 24 VDC
• Max. Current:
 Alarm: 68 mA
 Standby: 28 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 2.26  ANN-I/O Board Layout
ann-ioleds.wmf