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Cisco uBR7225VXR Universal Broadband Router Hardware Installation Guide
OL-17309-02
Appendix C Cable Specifications
Fiber-Optic Cables and Connectors
Fiber-Optic Cables and Connectors
Warning
Because invisible radiation may be emitted from the aperture of the port when no fiber cable is
connected, avoid exposure to radiation and do not stare into open apertures.
Statement 1056
Warning
Class 1 laser product.
Statement 1008
Use a single-mode or multimode fiber-optic interface cable to connect your Cisco uBR7225VXR router
to another router or switch. In general, multimode cables are gray or orange, and single-mode cables are
yellow. For Ethernet and multimode fiber-optic connections, use one duplex SC-type connector
(Figure C-5) or two simplex SC-type connectors. (See Figure C-6.)
Figure C-5 Duplex SC Cable Connector
Figure C-6 Simplex SC Cable Connector
Attach either one duplex fiber cable or two simplex fiber cables between the digital pulse terminator
(DPT) port adapter and the device to which the DPT port adapter is connected. Observe the receive (RX)
and transmit (TX) cable relationship shown in Figure C-7.
Figure C-7 Attaching Simplex or Duplex Fiber-Optic Cables
242230
2422
31
25168
SONET/SDH with simplex
or duplex SC connectors
To network
Simplex
RX TX
Duplex