Aviat Networks CTR 8540, Hardware Installation

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CTR 8540 GETTING STARTED: INSTALLATION
Function/Requirement Priority Details
Slot Assignment
All slots filled All slots must be filled with a module or have a cover plate fitted.
Failure to do so will compromise EMC integrity and distribution of
fan cooling air.
Module Slot 1
Universal plug-in slot. Accepts all plug-in modules.
For the PWR or PWR+AUX module, Slot 1 must be used.
Module Slots 2-4 Slots accepts RAC or PoE modules.
Installing / Changing
Plug-in Modules
ESD grounding strap Always connect yourself to the CTR with an ESD grounding strap
before changing or removing a module. Failure to do so may
cause ESD damage to the modules.
Finger-grip fasteners Modules must be withdrawn and inserted using their captive
finger-grip fasteners/pulls. Never withdraw or insert using
attached cables, as damage to the module connectors and their
PCB attachment can occur.
Do not over-tighten fasteners using a screwdriver or similar. Only
finger-tighten or use light screwdriver pressure.
Hot-swappable Modules are hot-swappable.
- Removal of an in-service module will interrupt its traffic.
- Removal / replacement of the FAN does not affect traffic.
Engaging backplane connector When installing a module, ensure its backplane connector is
correctly engaged before applying sufficient pressure to bring
the module panel flush with the front panel.
Revision time lag When swapping or installing CTR modules, several seconds can
be required for the CTR to show its revised status via the front
panel LEDs.
EMC integrity Ensure the finger-screws on modules and cover plates are
fastened, as failure to do so may compromise EMC integrity and
fan cooling.
RAC Modules
Connecting and disconnecting
the ODU cable at the RAC Never disconnect or reconnect an ODU or IRU 600 RFU cable to a
RAC module without first turning the power off to the CTR or
withdrawing the RAC from the backplane.
NOTE:
The ODU/RFU cable provides the power feed to the
ODU/RFU. Arcing during connection and disconnection at the
RAC on a live RAC can cause damage to connector contact sur-
faces. Power spikes caused by live connection and dis-
connection may also cause errors on other traffic passing
through the CTR. The only exception to live disconnection and
connection should be for checks of protected operation at link
commissioning.
Removing RAC from a powered
INU When removing a RAC module from a powered CTR, always
disengage the RAC from the backplane before disconnecting its
ODU/RFU cable. Similarly before inserting an RAC, always
reconnect the ODU/RFU cable before engaging the backplane.
8 AVIAT NETWORKS