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1.13 Power Supply Problems
Table 1-7
Optical Card
OC3 IR 4/STM1 SH 1310
OC3 IR/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/STM16 SH AS 1310
OC48 LR/STM16 LH AS 1550
OC48 ELR/STM16 EH 100 GHz
OC192 SR/STM64 IO 1310
OC192 IR STM64 SH 1550
OC192 LR/STM64 LH 1550
OC192 LR/STM64 LH ITU 15xx.xx
TXP-MR-10G
MXP-2.5G-10G
1.13 Power Supply Problems
Symptom
to the default date and time.
When working with live power, always use proper tools and eye protection.
Warning
Cisco ONS 15454 SDH Troubleshooting Guide, R5.0
1-144
Optical Card Transmit and Receive Levels
Trunk side:
Client side:
Trunk side:
Client side:
Loss of power or low voltage, resulting in a loss of traffic and causing the LCD clock to reset
Loss of power or low voltage.
Possible Cause
Improperly connected power supply.
Possible Cause
The ONS 15454 SDH requires a constant source of DC power to properly
Recommended Action
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
Cause of Power Supply Problems" procedure on page
Receive
Transmit
–28 to –8 dBm
–15 to –8 dBm
–30 to –8 dBm
–15 to –8 dBm
–28 to –8 dBm
–15 to –8 dBm
–28 to –8 dBm
–3 to +2 dBm
–28 to –8 dBm
–3 to +2 dBm
–28 to –8 dBm
–3 to +2 dBm
–18 to 0 dBm
–5 to 0 dBm
–28 to –8 dBm
–2 to +3 dBm
–28 to –8 dBm
–2 to 0 dBm
–11 to –1 dBm
–6 to –1 dBm
–14 to –1 dBm
–1 to +2 dBm
–21 to –9 dBm
+7 to +10 dBm
–22 to –9 dBm
+3 to +6 dBm
–26 to –8 dBm
–16 to +3 dBm
–14 to –1 dBm
–6 to –1 dBm
–26 to –8 dBm
–16 to +3 dBm
depends on SFP
depends on SFP
1-145.
Chapter 1
General Troubleshooting
"Isolate the
July 2005
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