Installation
EST3 Installation and Service Manual
5.48
Switch SW2 factory settings (located on serial board)
Switch Factory Setting Description
SW2-5 ON ON: 32-byte buffer threshold
OFF: 256-byte buffer
threshold
SW2-6 ON ON: 200ms busy signal
OFF: 1s busy signal
SW1-7 OFF ON: Space after power on
OFF: Space after printer
select
SW1-8 OFF not used
System printer power supply
If your PT-1S system printer is required to operate during a
brownout or AC power failure, install an uninterruptible power
supply per Figure 5-10.
LINE
FEED
FO RM
FEED
TOP
SET
SELECT ALARM P OWER PITCH MODE
SYSTEM PRINTER
PT1-P
UPS Trouble
Contact Monitor
Run Time
174 minutes 20%
+
To 3-CPU I
To 120 VAC
15 Amp Circuit
PT1S Serial Printer
Signature Module
Uninterruptible
Power Supply
U.L. 1481 listed
UPS
Figure 5-10: Printer uninterruptible power supply wiring
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