363-206-305 Detailed Level Procedure:
DLP-514
Issue 3, June 2000 Page 3 of 22
DDM-2000 F
IBER
R
EACH
W
IDEBAND
S
HELF
WaveStar 2.5G/10G LEY15/LEY16 OC3/STM1 Port Unit require
single-mode optical fibers. 29G-U/29H-U OLIUs and WaveStar 2.5G/10G
LEY13/LEY14 OC12/STM4 Port Unit require single-mode optical fibers.
NOTE:
Optical fibers connecting this shelf with a far end shelf should not be
connected to the OLIU until at least 45 seconds after an optical loopback
is removed.
NOTE:
It may take from 15 seconds to 3 minutes and 25 seconds for the FAULT
LEDs to stop flashing after the cables are connected, depending on the
setting of the OC-1 signal degrade threshold (–5 to –9).
NOTE:
The single-mode to single-mode (SM-SM) LBOs are installed on the OUT
buildout block of the OLIU. The single-mode to multimode (SM-MM) or
multimode to multimode (MM-MM) LBOs are installed on the IN buildout
block of the OLIU.
Remove protective covers from transmit optical jumper cables and lightguide
buildout(s) [LBO(s)] and clean SC, FC, or
ST
connectors and LBO(s).
Reference: DLP-527
5. Have you determined the value of the LBOs for this span?
If YES, proceed to Step 9.
If NO, continue with Step 6.
Optical Power Measurement
SUMMARY: Steps 6 through 9 are used to measure optical power. Replace
LBOs with 0 dB LBOs per Figure 1. Connect the optical fiber transmit cable to
the OLIU OUT connection. Measure the optical power of the optical fiber
receive cables at the other ends using an optical power meter.
6. At both ends of the optical span, replace the SC, FC, or
ST
LBOs with 0 dB
LBOs per Figure 1 [DLP-503].
7.
NOTE:
This single-homed OC-1 ring configuration requires that the FN ( )-1
OLIU on the OC-3 shelf connect to the MAIN-1 OLIU at the first
FiberReach shelf from the OC-3 shelf. The MAIN-2 OLIU at the
FiberReach shelf on the OC-1 ring connects to FN ( )-2(P) OLIU on the
host OC-3 shelf.
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