Pulse CLEI PBB1GF0D Manual page 16

-48 vdc telecommunications power system power node/30
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Power Node/30
1650, Issue 1, March 2011
LED
Lights to indicate that – 48 VDC
power is supplied to the (1) output
(1)
(Green)
Lights to indicate that –48 VDC
power is supplied to the (2) output
(2)
(Green)
Flashes to indicate AC or charger
failure; system is operating via
batteries.
Extinguishes to indicate that the
charger is working properly.
DANGER: Ensure that AC power
AC FAIL
is OFF before removing AC outlet
(Flashing
box cover. Only a licensed electri-
Yellow)
cian or technician formally trained
and approved to work with AC
power circuitry should examine
wiring or perform AC wiring repairs
within the outlet box.
Lights to indicate open battery fuse
FUSE FAIL
(batteries are disconnected from
(Red)
the load) or open output fuse.
Indicator
Contact closure to indicate loss of
AC power, loss of output power,
open battery fuse, open/missing
ALM
output fuse(s), or any combination
(OUTPUT
thereof.
TERMINAL)
Table 4. Power Node/30 Troubleshooting
Function
If LED is extinguished:
terminal.
If LED is extinguished:
terminal.
If LED is flashing:
If LED is illuminated:
Function
If contact closure indication is present:
Corrective Action
Check FUSE FAIL LED.
On: Replace – 48V (1) fuse.
Off: Check – 48V (1) fuse for defects or poor seating.
Check output voltage by placing probes on – 48V (1) and RTN
(1) terminals.
If Present: Defective LED.
If Not Present with AC On: Defective power supply.
If Not Present with AC Off: Discharged or disconnected battery
string
Check FUSE FAIL LED.
On: Replace –48V (2) fuse.
Off: Check –48V (2) fuse for defects or poor seating.
Check output voltage by placing probes on – 48V (2) and RTN
(2) terminals.
If Present: Defective LED.
If Not Present with AC On: Defective power supply.
If Not Present with AC Off: Discharged or disconnected battery
string
Check AC service to Power Node/30.
If Not Present: Check utility primary breaker/fuse or contact
utility.
If Present: Proceed to next bullet.
Check voltage at outlet box in Power Node/30.
If Not Present: Check wiring to and inside outlet box for open
circuit.
If Present: Proceed to next bullet.
Check power cord to power supply for secure contact.
Check for voltage at the connector end of cord.
If Not Present: Replace power cord.
If Present: Proceed to next bullet.
Power supply module defective; replace.
Check all fuses.
Replace any open fuses.
Corrective Action
Check all functions and take corrective action for anomalies.
If all functions are normal, remove alarm connections from
power supply terminal block.
Check alarm terminals for low impedance.
If Not Present: Check alarm wiring for shorts.
If Present: Power supply module defective; replace.
16

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