Upgrade Considerations - C-COR Flex Max901e Equipment Manual

Upgrade Considerations

3
Although upgrading an existing 700/800/900 series FlexNet trunk or bridger amplifier to a
Flex Max901e enables reuse of the housing and maintenance of amplifier spacing, there are five
major issues to consider:
3-2 Flex Max901e 1GHz Trunk and Bridger Amplifiers
WARNING Hazardous voltages are present. Use approved safety equipment and
procedures.
CAUTION Amplifier electronic components can be damaged by the environment.
Close the housing whenever it is left unattended to keep moisture out of the station
and to protect the network from RF interference.
CAUTION When opening a housing, a vacuum may exist. If it is necessary to pry open
the lid, do so at the lid bolt bosses which offer additional structural support. Prying the
lid at another location may damage the housing.
1. Hazardous voltages are present. Use approved safety equipment and procedures.
2. This upgrade will disrupt service to downstream subscribers and to upstream subscribers
if AC power is back-fed through the existing line extender to power upstream amplifiers.
3. While SEQ-1G and SCS-1G plug-in accessories will address all bandwidths up to 1 GHz,
you may wish to reuse your current equalizers and cable simulators until you expand your
system to 1 GHz. The following plug-in accessory information applies to all FlexNet 700,
800, and 900 series upgrades. Please note:
SPB series PADs cannot be used. NPB series PADS are required.
MEQ and MEQT series return equalizers can be used.
All SEQ-750 and SEQ-862 series equalizers (with and without covers) can be used.
While the Flex Max901e trunk amplifiers are designed for 1 GHz operation, they can
also be configured for use as spares in existing 750 or 870 MHz systems. Refer to
Factory-Shipped Configurations for Flex Max901e Trunk and Bridger Amplifiers
beginning on page 5-9 for the appropriate plug-in accessories and locations.
4. Power supplies may need a cable adapter or the power supply may need to be replaced.
Refer to Table 3.2 on page 3-6 and Cable Adapter (9-pin to 12-pin) Installation on page 3-9
for important power supply information.
5. Review Tools Required on page 3-3 to ensure that you are prepared to perform the upgrade
in the field.
1502154 Rev D