Cisco ONS 15454 SDH Specifications Page 158

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3-38
Cisco ONS 15454 SDH Troubleshooting and Maintenance Guide, R3.3
May 2002
Chapter 3 Card Reference
MIC-C/T/P Card
3.17.1 MIC-C/T/P Port-Level Indicators
The MIC-C/T/P card has one pair of LEDs, located on the RJ45 LAN connector. The green LED is
illuminated when a link is present, and the yellow LED is illuminated when data is being transferred.
Figure 3-26 MIC-C/T/P block diagram
3.17.2 MIC-C/T/P Card Specifications
MIC-C/T/P Power Supply Connector
System Supply Voltage: Nominal -48 V DC
Tolerance limits: - 40.5 to - 57.0 V DC
Connector: 3WK3 Combo-D Power Cable Connector
MIC-C/T/P Timing Connector
Frequency: 2.048 MHz + 10 ppm
Signal Level: 0.75 to 1.5 V
Impedance: 75 + 5% (switchable by jumper to high impedance > 3 k)
(120 Impedance, balanced, possible with external matching cable)
Cable Attenuation: up to 6 dB at 2 MHz
Connectors: 1.0/2.3 Miniature Coax connector
MIC-C/T/P Timing Connector
Frequency: 2.048 MHz + 10 ppm
Signal Level: 0.75 to 1.5 V
Impedance: 75 + 5%
(120 Impedance, balanced, possible with external matching cable)
Pulse Mask: ITU-T G.703 Figure 20
Connectors: 1.0/2.3 Miniature Coax
MIC-C/T/P System Management Serial Port:
System management serial port Craft interface
(modem port for future use)
Inventory Data
(EEPROM)
61334
B
a
c
k
p
l
a
n
e
3W3
connector
Power
RJ-45
connectors
System management serial ports
RJ-45
connectors
System management LAN
4 coaxial
connectors
Timing 2 x in / 2 x out
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