D&I Operation; Table 5-4. D&I Parameter Settings - Comtech EF Data SDM-300L3 Installation And Operation Manual

SDM-300L3 Satellite Modem
Modem Types
5.4 D&I Operation
To operate the modem in the Drop & Insert configuration, the following cards must be installed
in the modem:
•
•
The D&I option is a FAST feature that must be enabled using the front panel and the Utility
Modem Type menu. Table A-5 lists the parameters that are accessible once the D&I modem type
is enabled.
Modem Type
TX Data/Code Rate
TX-IF Output
RX Data/Code Rate
TX Clock Source
Buffer Clock Source
TX Coding Format
RX Coding Format
Drop Format
Insert Format
In D&I operation, the transmit data rate is a fractional portion of the trunk T1 or E1 terrestrial
input. The N stands for the number of 64 kbps time slots available for transmission. Table A-6
shows the allowable TX data rates for D&I with the corresponding number of time slots available
for each data rate.
Overhead G.703/IDR/IBS/ASYNC/AUPC/D&I card
50-pin D relay adapter card
T 5-4. D&I P
ABLE
Parameter Front Panel Settings
D&I
TX-V, QPSK 1/2 (NX64)
ON
RX-V, QPSK 1/2 (NX64)
Table 5-3
TX Terrestrial
Insert Clock
HDB3
HDB3
E1CCS/E1CAS (E1)
E1CCS/E1CAS (E1)
T
ABLE
Time Slots TX Data Rate
1 64 kbps
2 128 kbps
3 192 kbps
4 256 kbps
5 320 kbps
6 384 kbps
8 512 kbps
S
ARAMETER ETTINGS
Reference Manual
Utility - Modem Type
Configuration - Demodulator
Configuration - Demodulator
Configuration - Interface
Configuration - Interface
Configuration - Interface
Configuration - Interface
Configuration - Interface
Configuration - Interface
5-5. N 64 C
X HART
Time Slots
10 640 kbps
12 768 kbps
15 960 kbps
16 1024 kbps
20 1280 kbps
24 1536 kbps
30 1920 kbps
5–4
Revision 1
MN/SDM300L3.IOM
TX Data Rate