Comtech EF Data CDM-700 - Manual (Page 230)

CDM-700 High Speed Satellite Modem Revision 5
Dual E3/T3/STS-1 Interface (CDI-10) MN/CDM700.IOM
B–2
Figure B-1. Block Diagram of Dual E3/T3/STS-1 Data Interface Module
Figure B-2. Dual E3/T3/STS-1 Data Interface Module (CDI-10)
UNBAL UNBAL
G.703
E1/T1
E2/T2 G.703
E1/T1
E2/T2
Ext
BAL
Clock
Ext
BAL
Clock
Port 1
UNBAL
E3/T3/STS-1
Processor
Mux /
Demux
PLLs
Rx
Buffers
Interface
Loopback
Processor
Mux /
Demux
PLLs
Rx
Buffers
Interface
Loopback
Modem
Interface
Tx
Rx
Clk
&
Data
μC
BNC Female 5 Places
J3
J2
Dual E3/T3/STS-1 Card
Loopback
EXT Clk
UNBAL UNBAL
G.703
E1/T1
E2/T2 G.703
E1/T1
E2/T2 Port 2
UNBAL
E3/T3/STS-1
Tx
Rx
J5
J4
J1
External Clock
Loopback