Chapter 5: Installation
140 EST3X Technical Reference Manual
System printer standby power supply
If the PT-1S printer is required to operate during a brownout conditions or AC
power failure, install an uninterruptible power supply (UPS). See Figure 37.
The UPS should be UL Listed for fire protection (UTRZ) and provide 120 VAC at
50/60 Hz for at least 24 hours. If the printer is required to operate during
brownout conditions or AC power failures, install a UL Listed (UTRZ)
uninterruptible power supply that can maintain printer operating voltage for at
least 24 hours.
Figure 37: Uninterruptible power supply wiring
(1)
LINE
FEED
FORM
FEED
TOP
SET
SELECT ALARM POWER PITCH MODE
SYSTEM PRINTER
PT1-P
PT-1S
SFS1-CPU
UPS
(2)
(1) 120 VAC, 15 A circuit
(2) UPS trouble contact monitor circuit
Connecting a CDR-3 for coded tone output
The CDR-3 Bell Coder module can be connected to the AUX input on the 3X-PMI
EAEC card to provide a coded or march time tone to the audio system. See
Table 29 for power and installation specifications.
Table 29: CDR-3 power and installation specifications
power
Input voltage
Standby current
24 VDC nominal
60 mA
Standby
Alarm
60 mA
100 mA