Comtech EF Data CDM-600/600L - Manual (Page 101)

CDM-600/600L Open Network Satellite Modem Revision 3
Front Panel Operation MN/CDM600L.IOM
5–25
5.4.9.3 CONFIG: MISC
Æ ADPCM-AUDIO-VOLUME
TX-1 VOLUME= +0 dB TX-2 VOLUME= -2 dB
RX-1 VOLUME= +2 dB RX-2 VOLUME= -4 dB
ADPCM Tx1 = +0 dB Tx2 = -2 dB
Volumes: Rx1 = +2 dB Rx2 = -4 dB (
34v)
This menu permits varied gain (or volume) of the Tx and Rx Audio ESC circuits.
Select the volume to edit (Tx or Rx) using the [ ←][→] arrow keys, then edit the value using the
[
↑][↓] arrow keys. The permitted range of the volumes is –6 to +8 dB, in 2 dB steps. Press [ENT]
when done.
5.4.9.4 CONFIG: MISC Æ HIGH-RATE-ESC
HIGH-RATE-ESC = OFF (ON,OFF)
BAUDRATE = 9600 PARITY:DATA:STOP = N81
The ESC (Engineering Service Channel) is determined by the framing type selected under
CONFIG: MODE. The two options are High-Rate IBS ESC and ESC++.
Select the parameter to edit using the [ ←][→] arrow keys, then edit the value using the [↑][↓]
arrow keys, then press [ENT]. The user may select:
►
On or Off
►
RS-232 or RS485
►
Baud rate (range depends on other configuration parameters, see below)
►
Character format (number of data bits, parity, number of stop bits): 8N1 (8-None-1),7E2
(7-Even-2) or 7O2 (7-Odd-2).
For all CDM-600L units or for CDM-600 units with Firmware Ver. 1.3.1 or higher: The High
Rate IBS (Engineering Service Channel) is available as a FAST option in conjunction with IBS
framing. Both TX and RX framing must be IBS to enable this feature. If enabled, the lower of the
TX or RX primary data rate limits the maximum baud rate, in accordance with the following table:
Data Rate (kbps) Max ESC Baud Rate
64 2400
> 127.999 4800
> 255.999 9600
> 383.999 14400
> 511.999 19200
> 767.999 28800
> 1023.999 38400
See Chapter 12. OPEN NETWORK OPERATIONS for more information on Open Network
framing.