Comtech EF Data SDM-300A - Manual (Page 387)

SDM-300A Satellite Modem Revision 6
Specifications MN/SDM300A.IOM
19–31
19.9.5 G.703 (Optional with Overhead Card)
G.703 Specification
Primary Data Circuits Supported T1 SD, RD
E1 SD, RD
Interface Type Transformer coupled symmetrical pair
Data Rates T1 1544 kbps, ± 100 bps
E1 2048 kbps, ± 130 bps
Pulse Width T1 324, ± 50 Ns
E1 244, ± 25 Ns
SD Amplitude T1 3V +0.3/-1.5V-pk into 100 Ω
E1 3V +0.3/-1.5V-pk into 120 Ω
RD Amplitude T1 3V +0.3/-1.5V-pk into 100 Ω
E1 3V +0.3/-1.5V-pk into 120 Ω
Pulse Mask T1 G.703.2
E1 G.703.6
Jitter Attenuation T1 G.824
E1 G.823
Line Code AMI (T1 or E1)
B8ZS (T1 only)
HDB3 (E1 only)