Turbo Aupc; Ibs (Optional With Overhead Card); Ibs Primary Data Interfaces; Ibs Clock And Dejitter - Comtech EF Data SDM-300L3 Installation And Operation Manual

SDM-300L3 Satellite Modem
Specifications
14.13.5

Turbo AUPC

Self monitoring AUPC is provided.
14.14

IBS (Optional with Overhead Card)

Primary Data Rates Supported
G.703
EIA-422
V.35
Engineering Service Channel
Earth Station-to-Earth Station
Channel
EIA-232 Specification
Circuit Supported
Amplitude (RD, RT, CTS, ASR)
Amplitude (SD, ST, RTS)
Impedance
Faults and Alarms
Satellite Backward Alarm
Receive BWA Output
14.14.1

IBS Primary Data Interfaces

G.703
EIA-422
V.35
14.14.2

IBS Clock and Dejitter

Performs clock and data recovery on the G.703 format. Clock dejitter and data
encoding/decoding is done as with the IDR configuration.
14.14.3

IBS Framing

Multiplexes/demultiplexes the primary data in compliance with the standard IESS-309
overhead ratio of 1/15 (4 overhead bytes per 60 data bytes) and provides the rate
exchanged transmit clock to the modulator portion of the base modem.
1544 kbps SD, RD
2048 kbps SD, RD
N x 64 kbps SD, RD (up to 2048 kbps)
N x 64 kbps SD, RD (up to 2048 kbps)
EIA-232 data synchronous at 1/512 of the primary data
EIA-232 data asynchronous at 1/2000 of the primary data
SD, ST, RD, RT, DSR
(RTS, CTS connected by break-out panel)
True: 10V, ± 5V
False: -10V, ± 5V
True: Minimum +1V
False: Maximum -11V
5000, ± 2000Ω < 2500 pF
1 (per IESS-309)
Enabled onto terrestrial secondary alarm
Accepts and outputs primary data through the 50-pin connector using G.703. The
data rate must be at T1 or E1 rates only.
Accepts and outputs primary data through the 50-pin connector using EIA-422.
The data rate must be at data rate multiples of 64 kbps up to a maximum of
2048 kbps.
Accepts and outputs primary data through the 50-pin connector using EIA-422.
The data rate must be at data rate multiples of 64 kbps up to a maximum of
2048 kbps.
14–36
Revision 0
MN/SDM300L3.IOM