Nortel Networks DCT1900 manual When master Accepting framing clock from DTU or DLU source

Technical Product Manual - DCT1900

Installation Instructions, Central Processing Unit (CPU) – REX-BRD0004 or 2/ROFNB 157 19/2

Air Interface synchronization master/slave straps

Warning:

Wrong installation will damage board. Follow Section 5.3 carefully if this FPGA chip needs to be installed.

Frame timing synchronization source strap

Synchronizes to a 2 Mbit/s(DLU) link(1.544) (DTU), only allowed

when master (Accepting framing clock from DTU or DLU source)

Stand alone (default), mandatory when slave

(Providing framing clock to DTU or DLU source)

Master (default)

Slave, frame timing sync. source strap must be in stand alone position

Not allowed

Not allowed

Fig. 5–2 Strap Settings

Install-DCT1900/R8/mw	5-3
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