DSPbR Series
– User’s Manual
Document Number 00000.B Page 8/75
Ensure that all connectors are fully mated.
Use this equipment only for the purpose specified by RF Industries Pty Ltd. Do not carry out any modifications
or attempt any module repairs. All modules in this unit are not intended to be field repairable and should be
returned to RF Industries for service or repair.
When engaged in upgrading or maintaining the unit, please note that the RF Front End and RF Back End
modules are “Hot Swappable” accessible from the rear of the sub rack frame using the provided module
extraction tool. Should an upgrade or maintenance require any further deconstruction or access to the
equipment, the AC or DC power supply should be disconnected and appropriately isolated.
Although the modules and exposure of the interconnect sockets / pins have been designed to significantly
reduce the risk of electro static discharge (ESD), precautions must be observed during installation and
maintenance to protect all the modules within the equipment. An equipment earthing M6 stud is provided at the
rear of the sub-rack frame.
Owing to probable power dissipation within the equipment, the exposed rear portion of the equipment may
reach relatively high temperatures. Please take the necessary precautions when servicing or removing any
RFBE modules, filters, transmitter combiners or unscrewing any terminated RF coaxial cables.
There is a level of surge protection built into the PSU of the DSPbR, however additional site specific lighting
protection, voltage surge protection and earth bonding is required to reduce the risk of damage. We recommend
the use of adequate coaxial lighting protection and earth bonding through grounding kits on the RF feeder
cables prior to termination into the respective RF termination connectors on the repeater. AC or DC mains
should also be afforded surge protection, along with the IP Ethernet connection into the repeater.
The DSPbR sub rack frame must be well bonded to the 19” rack earth/grounding connection point.
An AC mains supply resettable circuit breaker is mounted on the front of the DSPbR between the two fans.
There is no fuse replacement required. Should this AC resettable circuit breaker “pop-out” under operational
conditions, a PSU failure alarm will be activated. It is strongly recommended that an investigation be made prior
to resetting the circuit breaker as to the possible reasons why the circuit breaker was activated.
Ensure that this User’s Manual is available to maintenance personal who are required to maintain the
equipment.
