Product specifications

CDM-710 Broadcast Satellite Modem Revision 10
CDI-60 HSSI Interface MN/CDM710.IOM
12–2
Figure 12-2. CDI-60 HSSI Interface
12.2 Physical Description
Figure 12-1. HSSI Interface Block Diagram
The HSSI Interface is implemented on a 3.95 x 7.022 inch (10.03 x 17.83 cm) PCB. Connection
to the modem is provided when the 96-pin DIN connector is engaged into the modem slot. The
HSSI interface consists of a 50-pin SCSI connector and an activity Light-Emitting Diode (LED)
that is lit when the interface is enabled.
Processor
Mux /
Demux
PLL
Rx
Buffer
Interface
Loopback
Control
Processor
Mux /
Demux
PLL
Rx
Buffer
Interface
Loopback
Control
Modem
Interface
Clk
&
Data
μC
HSSI Interface
TT
SD
ST
Common
J1
Rx Clock
Rx Data
50 Pin HSSI Female
TA
CA
(RTS)
(CTS)
Tx Clock Input (External)
Tx Data
Output Clock (Rate Programmable)
RT
RD