Specifications

2-79
Cisco IGX 8400 Series Provisioning Guide, Release 9.3.3 and Later Releases
OL-1166-04
Chapter 2 Cisco IGX 8400 Series Cards
High-Speed Data Module
Figure 2-37 Clocking Modes for SDI in DCE Mode
User device
(DTE)
SDI
(DCE)
User device
(DTE)
SDI
(DCE)
User device
(DTE)
SDI
(DCE)
TxD
RxD
RxC
TxC
A. Normal clock - TxC and RxC are same frequency
XD
RD
H8063
XTC (not used)
TxD
XTC
B. Loop clock - User device loops clock
XD
X0
X0
RD
RD
TxC (not used)
RxD
RxC
CLK
CLK
TxD
XTC
C. Split clock
XD
RD
RD
CLK
RxD
RxC
TxC (not used)
CLK