CANOGA PERKINS 2262 T1/E1 Fiber Optic Modem - Manual (Page 16)

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Canoga Perkins 2262 T1/E1 Fiber Optic Modem
The 2262 at the remote side will detect the remote loopback protocol and set itself
into a local loopback mode. The remote unit will also light its loopback LED
(blinking). The loopback switch at the remote side must remain in the Off position;
otherwise, the loopback operation at both local and remote sides will be terminated.
Figure 3-2, 2262 Block Diagram, shows the various operation modes and signal
flows.
Figure 3-2.
2262 Block
Diagram