Comtech EF Data CDM-570 - Manual (Page 115)

CDM-570/570L Satellite Modem with Optional IP Module Revision 12
Front Panel Operation MN/CDM570L.IOM
5–29
range of addresses is from 1 to 9999, although ‘base 10' values will be automatically
skipped.
Note: The Slave EDMAC address always ends in ‘1’. Keep in mind that this is a unit
that is intended for location at the distant-end of a link, and is therefore under the
control of a Master at the other end. This is the equivalent of putting the modem into
Remote Control mode; no local control is possible.
Press ENTER when done.
5.2.2.1.7 CONFIG: Intfc (Interface)
Data Interface: RS422 IP
V.35 RS232 G.703(◄ ► ENT)
Use the
◄ ► arrow keys to select RS422 (EIA-530), IP, V.35, RS232 (EIA-232), or G.703, and
then press ENTER.
5.2.2.1.7.1 (CONFIG: Interface) RS422 or V.35 or RS232
RTS/CTS Operation: (▲ ▼)
Loop,RTS Controls Tx Out
Selecting
RS422, V.35, or RS232 displays this typical submenu. Use the ▲ ▼ arrows keys to
select an option, and then press ENTER. Note the following:
Selection Description
RTS/CTS Loop, No Action
RTS and CTS are looped, so that CTS echoes the state of RTS, but RTS
does not control the ON/OFF state of the carrier.
Loop, RTS Controls Tx Out
RTS and CTS are looped, so that CTS echoes the state of RTS, and RTS
controls the ON/OFF state of the carrier (in other words, the modem will not
bring up its TX carrier until RTS is asserted).
Ignore RTS, Assert CTS RTS is ignored, and CTS is asserted unconditionally.
N/A - 1:N system in use
If the 1:N switch on the rear panel is active, then RTS/CTS are not supported;
the pins are assigned to redundancy functions.
5.2.2.1.7.2 (CONFIG: Interface) IP
If the optional IP Module is installed, and IP is selected, all of the CDM-570/570L rear panel
electrical interfaces are disabled, and all data for Tx and Rx is routed to and from the modem
board to the optional IP Module. The previous menu is then displayed.