Comtech EF Data DM240XR User Manual
Page 82
DM240XR High-Speed Digital Modulator
Rear Panel Interfaces
MN-DM240XR– Revision 13
5–12
Table 5-10. RS530 (RS-422) Connector
Pin No.
Signal Name
Signal
Direction
24
Terminal Timing A (-)
TT-A
Input
25
Test Mode
TM
Output
5.12.8 G.703 Interface (Contact factory for availability)
The G.703 Interface supports the following G.703 Rates: E1, T1, E2, T2, E3, T3, and STS-1. The
interface complies with G.703 Electrical Specifications. Table 5-11 lists the data rate and
physical interface for each rate.
All balanced rates use Pins 1 (-) and 9 (+) of the DB-15 connector.
Table 5-11. Available G.703 Interfaces
G.703 Rate
Data Rate
(Mbps)
Wire Type
Connector
Impedance
(Ohms)
Coding
E1
2.048
Coax
Female BNC
75
HDB3
E1
2.048
Pair
DB-15
120
HDB3
T1
1.544
Pair
DB-15
100
AMI/B8ZS
E2
8.448
Coax
Female BNC
75
HDB3
T2
6.312
Coax
Female BNC
75
B8ZS
T2
6.312
Pair
DB-15
110
B6ZS
E3
34.368
Coax
Female BNC
75
HDB3
T3
44.736
Coax
Female BNC
75
B3ZS
STS-1
51.84
Coax
Female BNC
75
B3ZS
IMPORTANT