User Manual

201
MN024-08
optical output ports. Do not look towards the optical ports while equipment
is switched on.
•
Handling optical connections
• When inserting an optical connector, take care to handle it so smoothly
that the optical fibre is not damaged. Optical fibres have to be single-mode
(SM) 9.5/125µm.
• Typically, Britecell Plus equipment is provided with SC-APC optical
connectors. Inserting any other connector will result in severe damages.
• Do not force or stretch the fibre pigtail with radius of curvature less than 5
cm.
• Remove adapter caps only just before making connections. Do not leave
SC-APC adapters open, as they attract dust. Unused SC-APC adapters must
always be covered with their caps.
• Do not touch the adapter tip. Clean it with a proper tissue before inserting
each connector into the sleeve. In case adapter tips need to be better
cleaned, use pure ethyl alcohol
Inserting or removing TDTX, TMRX, TSRX modules
• Do not remove or insert any module into TPRN sub-rack before having
switched off main power supply.
• Modules must be handled with care, in order to avoid damage to
electrostatic sensitive devices.
• When installing the modules in the sub-rack, take care to alternate active
and passive cards in order to ensure proper heat dissipation.
• In a multi-sub-rack system, remember to assign to each sub-rack a proper
RS485 bus address before installing the modules (please refer to TPRN
section for further details).
Positioning the TILx-HLW modules inside the subrack
• The i-link modules at slave side should be installed in the middle of the
slave subrack, or at least they should have no more than 4 TFLN modules
both on the right side and on the left side of the TSRX
3xx/8 module. This
requirement is advised in order to allow connection between the TSRX
module and all the TFLN transmitters (see fig. 5.39)
TILx-HLW installation
The TILx-HLW modules are provided with:
Both on master side and on slave side, the WDM i-link modules are to be
housed into a TPRN active sub-rack.
TILx-
-
HLW
Master Cable Installation Kit:
• 1 SMA-Male/SMA-Male RF
jumpers
• 1 SMB-Female/SMB-Female RF
jumper
• 1 Fiber Optic Jumper
Slave Cable Installation Kit:
• 17 SMA-Male/SMA-Male RF
jumpers
• 1 SMB-Female/SMB-Female RF
jumper
• 1 Fiber Optic Jumper