Nortel DCT1900 Technical Product Manual page 175

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.
Install-DCT1900/R8/mw
© 2000-2005
Installation Instructions, Central Processing Unit (CPU) – REX-BRD0004 or 2/ROFNB 157 19/2
Fig. 5–2 Strap Settings
Technical Product Manual - DCT1900
Frame timing
synchronization source strap
Synchronizes to a 2 Mbit/s(DLU)
link(1.544) (DTU), only allowed
(Accepting framing
when master
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
5-3