Comtech EF Data CDM-600/600L - Manual (Page 97)

CDM-600/600L Open Network Satellite Modem Revision 3
Front Panel Operation MN/CDM600L.IOM
5–21
D&I++ at n = 23 16560 bytes
6312 kbps (T2) 1578 bytes or 2 milliseconds
8448 kbps (E2) 528 bytes or 0.5 milliseconds
CONFIG: CLOCKS Æ RX-BUFFER/CLOCK Æ CENTER
PRESS ENTER TO CENTER THE BUFFER
OTHERWISE, PRESS CLEAR
Press [ENT] or [CLR] as prompted on the screen.
5.4.5.3 CONFIG: CLOCKS
Æ EXTERNAL BASEBAND CLOCK
EXTERNAL-BASEBAND-CLOCK = 02048.000 kHz
TYPE = UNBAL (UNBAL,BAL)
Select the digit to edit using the [ ←][→] arrow keys, then use the [↑][↓] arrow keys to revise
that digit. Press [ENT] when done.
5.4.5.4 CONFIG: CLOCKS Æ EXT-FREQ-REF (CDM-600 ONLY)
EXTERNAL FREQUENCY REFERENCE: INTERNAL
(HIGH-STABILITY INTERNAL,1,2,5,10,20MHz)
For CDM-600 units with Firmware Ver. 1.4.0 or higher, and with a High-Stability module
installed:
Select High-Stablility Internal, 1, 2, 5, 10, or 20 MHz using the [ ↑][↓] arrow keys, then press
[ENT].
5.4.5.5 CONFIG: CLOCKS
Æ INT-REF (CDM-600 ONLY)
INTERNAL HI-STABILITY 10 MHz REFERENCE
FINE ADJUST: +048 (+/-999)
For CDM-600 units with Firmware Ver. 1.4.0 or higher, with a High-Stability module installed
and with the Hi-Stability Internal 10 MHz Reference selected:
With the High-Stability Internal 10 MHz Reference selected, very fine adjustment of the Internal
10MHz Reference is possible. The adjustment value is retained in EEPROM memory, and is
therefore not lost when the NVRAM memory is cleared.
Select the digit to be edited using the [ ←][→] arrow keys, then edit the value of the digit using
the [ ↑][↓] arrow keys. Press [ENT] when done.
Note: Changes made to the adjust value are implemented immediately, not after the [ENT] key
is pressed.