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Page
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Shyam Telecom Limited
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Next Generation
Signal Enhancement
10. S
ystem
M
aintenance
10.1. G
eneral
T
he system normally operates without any operator intervention or
maintenance.
I
n the event of fault, the field replaceable units
(
antenna &
cables
)
should be checked for faults and the system restored.
A
faulty unit
can be removed and replaced with a spare while the rest of the system is
still operating. Soldering or local repair of the modules should be avoided.
Faulty module/unit should be replaced with genuine spares from
S
hyam
T
elecom
L
imited only.
T
he power supply of the faulty repeater should be isolated from
AC
mains
and
DC
power before any module is replaced.
I
n the event of a system
malfunction, the status of the antenna systems should be checked as well as
the continuity of the cabling before replacing any modules within the
repeater.
10.2.
P
reventive
M
aintenance
T
he
DB6M
M
odular repeater does not require any preventive
maintenance.
11.
S
hut
D
own
M
echanisms
T
he repeater has an automatic shutdown mechanism to protect the repeater
itself, and also to eliminate any degradation to
VZW
network, when the
normal operational conditions cannot be maintained.
T
he repeater shuts down automatically when the composite uplink or
downlink output powers are above the values defined as peak for the device
for a period not to exceed
5
seconds.
A
fter automatic shutdown, the repeater automatically turns-on in order to
assess whether the temporary condition has changed. If the condition is still
detected, the repeater shuts down again.
A
nd it takes
3
to
15
minutes
(
user configurable
)
to
ON
again after
automatic shut down.
