Chapter 12. Single G.703 (E3/T3/Sts-1) Interface (Cdi-10-1); Physical Description; Figure 12-2. Cdi-10-1 Block Diagram; Figure 12-3. Cdi-10-1 Rear Panel View - Comtech EF Data CDM-710G Installation And Operation Manual

CDM-710G High-Speed Satellite Modem
Single G.703 (E3/T3/STS-1) Interface (CDI-10-1)
For a table of the applicable interfaces and installable combinations, refer to Sect. 1.3.5 Allowable
Data Interface Combinations.
12.2

Physical Description

Figure 12-2 depicts the block diagram of the interface; Figure 12-3 shows the rear panel of the
interface. The data interfaces provided here are as follows (left to right):
•
External Clock Input Port (J1)
•
The CDI-10-1 module provides a Single G.703 Interface Port – Rx / J2 (top) and Tx / J3
(bottom) – that is operable/selectable as E3, T3, STS-1 or OFF.
Additionally, a Light-Emitting Diode (LED) labeled Active lights when G.703 data activity is
sensed.
Refer to the next section for connector information.
J3
UNBAL
E3/T3/STS - 1
J2
BNC Female 3 Places
J1
EXT Clk
Tx
UNBAL
UNBAL
Rx
External Clock

Figure 12-2. CDI-10-1 Block Diagram

Figure 12-3. CDI-10-1 Rear Panel View

G.703
G.703
E1/T1
E1/T1
E2/T2
E2/T2
Loopback
Ext
Ext
BAL
BAL
Clock
Clock
Single E3/T3/STS - 1 Card
12–2
MN-CDM710G
Processor
Processor
Mux /
Mux /
Clk
Demux
Demux
&
Data
PLLs
PLLs
Modem
Interface
μ C
Rx
Rx
Buffers
Buffers
Interface
Interface
Loopback
Loopback
Revision 1