Cisco ONS 15454 Руководство по установке - Страница 17
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Chapter 2 Install Cards and Fiber-Optic Cable
Do not use fiber loopbacks with the OC192 IR/STM64 SH 1550 card unless you are using a 5-dB
Caution
attentuator. Never connect a direct, unattenuated fiber loopback. Using unattenuated fiber loopbacks
causes irreparable damage to the OC192 IR/STM64 SH 1550 card.
Always use the supplied ESD wristband when working with a powered ONS 15454. Plug the wristband
Caution
cable into the ESD jack located on the lower-right outside edge of the shelf assembly.
Note
Fiber boots are not recommended for OC192 cards or OC48 AS cards because of the downward angle
of the optical ports.
Note
You can install the fiber-optic cable immediately after installing the cards, or wait until you are ready to
turn up the network. See
Step 1
Test the optical receive levels for the cards installed and attenuate accordingly. See
minimum and maximum levels.
Note
Table 2-5
Card
OC3 IR 4/STM1 SH 1310
OC3IR/STM1SH 1310-8
OC12 IR/STM4 SH 1310
OC12 LR/STM4 LH 1310
OC12 LR/STM4 LH 1550
OC12 IR/STM4 SH 1310-4
OC48 IR 1310
OC48 LR 1550
OC48 IR/STM16 SH AS 1310
OC48 LR/STM16 LH AS 1550
OC48 ELR/STM16 EH 100 GHz
OC48 ELR/STM16 EH 200 GHz
OC192 SR/STM64 IO 1310
78-17697-01
Chapter 5, "Turn Up a Network."
The levels for the 15454_MRC-12, OC192SR1/STM64IO Short Reach, and OC192/STM64 Any
Reach (OC192-XFP) cards are dependent on the particular SFP/XFP installed in a port. The
SFPs/XFPs are shown in parentheses in
Optical Card Transmit and Receive Levels
Table 2-5
for these cards.
Transmit
Receive
Minimum Maximum
Minimum
–15 dBm
–8 dBm
–28 dBm
–15 dBm
–8 dBm
–28 dBm
–15 dBm
–8 dBm
–28 dBm
–3 dBm
+2 dBm
–28 dBm
–3 dBm
+2 dBm
–28 dBm
–15 dBm
–8 dBm
–30 dBm
–5 dBm
0 dBm
–18 dBm
–2 dBm
+3 dBm
–28 dBm
–5 dBm
0 dBm
–18 dBm
–2 dBm
+3 dBm
–28 dBm
–2 dBm
0 dBm
–27 dBm at
1E-12 BER
–2 dBm
0 dBm
–28 dBm
–6 dBm
–1 dBm
–11 dBm
Cisco ONS 15454 Procedure Guide, R8.0
NTP- A247 Install Fiber-Optic Cables
Table 2-5
for the
Maximum
–8 dBm
–8 dBm
–8 dBm
–8 dBm
–8 dBm
–8 dBm
0 dBm
–8 dBm
0 dBm
–8 dBm
–9 dBm
–8 dBm
–1 dBm
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