Specifications

2-80
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 2-38 Clocking Modes for SDI in DTE Mode
User device
(DCE)
SDI
(DTE)
User device
(DCE)
SDI
(DTE)
User device
(DCE)
SDI
(DTE)
TxD
TxC
A. Normal clock - TxC and RxC must be same frequency
XD
RD
H8064
XTC (not Used)
TxD
XTC
B. Loop clock - User device loops clock
XD
RD
TxC (not used)
RxD
RxC
RxD
RxC
CLK
CLK
XD
RD
XD
RD
TxD
XTC
C. Split clock
XD
RD
TxC (not used)
RxD
RxC
CLK
RD
CLK