Radyne OM20 Specifications download pdf (Page 200)

OM20 Universal Outdoor Modem Appendix F

MN-OM20– Revision 5 F–2

FEATURES

UPGRADE LIST

D&I

INSTALLED required

ENH ASYNC

INSTALLED optional, required if desired

AUPC

INSTALLED optional, required if desired

F.3 Efficient Drop & Insert Mode

With Efficient Drop & Insert, the terrestrial interface selections, terrestrial framing modes,

terrestrial to satellite mapping, ES to ES channel, satellite and terrestrial backward alarm

functionality, and the In Station Prompt and Deferred Service alarm operation are identical to

that of the Open Network standard. In addition, the selection and operation of Enhanced Async

and AUPC are identical to their closed network IBS counterparts. For more information on these

selections, refer to the appropriate section of the User’s manual.

The following menu selections are utilized for controlling the additional functionality available

with efficient Drop and Insert:

MODULATOR or DEMODULATOR

NETWORK SPEC

CLOSED NET Efficient Drop & Insert is a Closed Network selection

SAT FRAMING

EFFICIENT D&I The satellite frame type is Efficient Drop & Insert

DATA

DATA RATE (bps)

N x 64000 The data rate can be set to any N x 64 kbps rate based on the desired

number of drop or insert slots. The following values of N are allowed

based on the terrestrial interface and terrestrial framing types shown

T1 Any framing Any N from 1 to 24

E1 Any PCM31 Any N from 1 to 31

E1 Any PCM30 Any N from 1 to 30 as TS 16 is automatically

transmitted

SCRAMBLER CTRL

DISABLED The Efficient Drop & Insert mode utilizes a frame synchronous energy

dispersal technique that is always on, thus there is no need for any

additional scrambling

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Radyne OM20 Specifications Page 200