Unit installation

22
Table 2.4 Smart PSU Output Default Functions.
The Smart PSU has two separately fused regulated 12 V d.c. outputs, each
capable of supplying 1.5 A to additional modules and devices. A fused
regulated voltage is also supplied to charge a 12 V lead-acid stand-by battery.
For further information refer to the Galaxy Smart Power Supply Unit Installa-
tion Instructions (Part Number: L101).
The default functions of each Smart PSU output when connected to a Galaxy
16/16 plus control panel, are shown in Table 2.4 Smart PSU Output Default
Functions.
RS232 Interface Module
The Galaxy RS232 module provides full duplex serial communication between
the Galaxy 16/16 plus control panels and PCs or serial printers. This module has
three main functions:
• Copy and overwrite the control panel programming.
• Interface with a PC.
• Interface with a serial printer.
Figure 2.3 RS232 Interface Module.
S1
JP1
LD1
IC1
IC3
IC2
SW 2
(Tamper)
Link 1 (Cut to enable tamper)
SW3 (Copy)
LD3
(Copy)
IC3
LD4 (Overwrite)
SW4 (Overwrite)
PROM1
SW1 (MEM BK)
25 Way
Sub-D type
RS232 Connector
B A – +
B A + – S
LINE 12 V
RS232 Interface Module
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