Mocomtech CDM-QX - Manual (Page 99)

CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Revision 7
Front Panel Operation MN/CDMQX.IOM
5–33
5.4.6 CONFIG: Interface
Interface: RS422 V.35 RS232
HSSI ASI G.703 QDI NONE
The data interface for each module (modulator or demodulator) is auto-detected. If grouped as a
modem, the operating data interface will be the one installed in the demod module – the data
interface on the modulator is not required.
If a QDI interface is installed and a modem is grouped, then either it or the interface installed on the
Demod can be selected.
The modulator or demodulator module can support one of the following data interfaces:
• RS-422 (RS-530)
• V.35
• RS-232
• HSSI
• G.703 (for single T1 or E1)
The blinking cursor points to the data interface supported by the installed module(s). Press
ENTER
to continue.
(Note: While displayed on the menu, the ASI interface is not implemented/available at this time.)
5.4.6.1 CONFIG: Interface Æ RS422, V.35, RS232
If grouped as a modem and RS422, V.35, or RS232 is selected, the following submenu displays:
RTS/CTS operation: (▲ ▼,ENT)
Loop,RTS Controls Tx Out
Select the desired option using the ST arrow keys, then press
ENTER
. Note the following:
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.
5.4.6.2 CONFIG: Interface Æ HSSI
HSSI Mode Select: (▲ ▼,ENT)
TA to CA Loop
Select the desired option using the ST arrow keys, then press
ENTER
. Note the following:
TA to CA Loop
TA and CA are looped, but TA does not control the ON/OFF state
of the carrier.
RR controls CA,
TA controls Tx Out TA controls the ON/OFF state of the carrier (in other words, the
modem will not bring up its TX carrier until TA is asserted.