SW1
SW1 = Reset switch to microcontroller.
Fl
Fast Acting 4/l OA.
Jumpers
Shunt Jumper P2:
l
To enable RAM Battery Backup: Plug jumper 166-l 57 onto pins 1 and 2.
l
To disable RAM Battery Backup: Plug jumper 166-I 57 onto pins 2 and 3.
Shunt Jumper P3:
l
To enable Flash EPROM writes: Plug jumper 166-157 onto 1 and 2.
l
To disable Flash EPROM writes: Plug jumper 166-l 57 onto 2 and 3.
Connectors
Pl = Same as Pl of the 565-333 UT Master Controller.
P4 = Master Display Port.
l
Connects to the master display board (optional) and drives the display board’s LCD, LEDs, and keypad.
P5+P6 = Connects to a 565-l 61 motherboard for power and comm connections, plus two external inputs.
U5 U6 U8 U9
u12 u13
u14
LED1 P4
SW1
Pl
Figure 4
565-l 48 Master Controller
-U26
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