Cisco ONS 15454 SDH - Power Supply Problems

1-144
Cisco ONS 15454 SDH Troubleshooting Guide, R5.0
July 2005
Chapter 1 General Troubleshooting
1.13 Power Supply Problems
1.13 Power Supply Problems
Symptom Loss of power or low voltage, resulting in a loss of traffic and causing the LCD clock to reset
to the default date and time.
Possible Cause Loss of power or low voltage.
Possible Cause Improperly connected power supply.
Recommended Action The ONS 15454 SDH requires a constant source of DC power to properly
function. Input power is –48 VDC. Power requirements range from –42 VDC to –57 VDC. A newly
installed ONS 15454 SDH that is not properly connected to its power supply does not operate. Power
problems can be confined to a specific ONS 15454 SDH or affect several pieces of equipment on the
site. A loss of power or low voltage can result in a loss of traffic and causes the LCD clock on the
ONS 15454 SDH to default to January 1, 1970, 00:04:15. To reset the clock, in node view click the
Provisioning > General > General tabs and change the Date and Time fields. See the “Isolate the
Cause of Power Supply Problems” procedure on page 1-145.
Warning When working with live power, always use proper tools and eye protection.
Table 1-7 Optical Card Transmit and Receive Levels
Optical Card Receive Transmit
OC3 IR 4/STM1 SH 1310 –28 to –8 dBm –15 to –8 dBm
OC3 IR/STM1SH 1310-8 –30 to –8 dBm –15 to –8 dBm
OC12 IR/STM4 SH 1310 –28 to –8 dBm –15 to –8 dBm
OC12 LR/STM4 LH 1310 –28 to –8 dBm –3 to +2 dBm
OC12 LR/STM4 LH 1550 –28 to –8 dBm –3 to +2 dBm
OC12 IR/STM4 SH 1310-4 –28 to –8 dBm –3 to +2 dBm
OC48 IR/STM16 SH AS 1310 –18 to 0 dBm –5 to 0 dBm
OC48 LR/STM16 LH AS 1550 –28 to –8 dBm –2 to +3 dBm
OC48 ELR/STM16 EH 100 GHz –28 to –8 dBm –2 to 0 dBm
OC192 SR/STM64 IO 1310 –11 to –1 dBm –6 to –1 dBm
OC192 IR STM64 SH 1550 –14 to –1 dBm –1 to +2 dBm
OC192 LR/STM64 LH 1550 –21 to –9 dBm +7 to +10 dBm
OC192 LR/STM64 LH ITU 15xx.xx –22 to –9 dBm +3 to +6 dBm
TXP-MR-10G
Trunk side:
Client side:
–26 to –8 dBm
–14 to –1 dBm
–16 to +3 dBm
–6 to –1 dBm
MXP-2.5G-10G
Trunk side:
Client side:
–26 to –8 dBm
depends on SFP
–16 to +3 dBm
depends on SFP