SAN Annunciator Manual
3
SAN-CPU Annunciator Controller
Description
The SAN-CPU is the interface between the network data lines and the
SAN series of annunciator modules. The SAN-CPU features: Style 7
(Class A) Style 4 (Class B) communication Circuits, RS-485, Fiber
Optic or 20mA Communication Formats, 96 input and/or output
capability, and Requires one (1) panel address on the data line.
COMPONENT SIDE
LAMP
TEST
P1
JP
1
JP
2
+PWR- +CH1- +CH2-
TB1
[SAN-004.CDR]
LD1
LD2
U3
U4
Application
The SAN-CPU is required when using any of the SAN series modules
which communicate with the network controller.
Specifications
Specifications
Module Power
24 VDC, 54 mA
Communications
Formats
RS-485, Fiber Optics, 20mA Current Loop
Data Line Wiring
Style 7 (Class A) or style 4 (Class B)
Mounting
1/2 Module Space
Power Calculations
The SAN-CPU requires 24 VDC power. The following areas must be
addressed:
1. A minimum of 18.0 V is required at the SAN-CPU.
2. Minimum supply voltage available is 20.4 VDC.
3. The standby and alarm current requirements of the SAN-CPU and
the option modules to which it is connected must be known.
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