Nortel Networks DCT1900 - Manual (Page 175)

Technical Product Manual - DCT1900
Installation Instructions, Central Processing Unit (CPU) – REX-BRD0004 or 2/ROFNB 157 19/2
Install-DCT1900/R8/mw 5-3
© 2000-2005
Fig. 5–2 Strap Settings
Frame timing
synchronization source strap Air Interface synchronization
master/slave straps
Stand alone (default),
mandatory when slave
Synchronizes to a 2 Mbit/s(DLU)
link(1.544) (DTU), only allowed
when master
(Accepting framing
clock from DTU or DLU source)
Master (default)
Slave, frame timing sync. source
strap must be in stand alone
position
Not allowed
Not allowed
Warning:
Wrong installation will
damage board. Follow
Section 5.3 carefully if
this FPGA chip needs
to be installed.
(Providing framing clock to
DTU or DLU source)