The 202T Modem Options; Figure 4. Location Of Option Switches - AT&T 202T User Manual

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The 202T Modem Options
The 202T modem is provided with numerous options that should be selected prior to placing
the modem in service. These options must be compatible with your DTE. Check your DTE
manual for options that may be required. Figure 4 shows the location of the option switches.
Removal of the reverse channel circuit pack is described in the INSTALLATION
PROCEDURES section under Installing 202T Modem Options.
The option switches or strap is used to select the various options. The options for the 202T
modem are listed in Table A. The options marked '.'factory-provided" are the most
commonly used. The recommended options for 2-wire private line and 4-wire private line
with talk-back using the. 202T series modems are listed in · Table B. The. recommended
options for 4~wire point-to-point and multipoint without talk-back using the 202T series
modems are listed in Table C.
OPTIONS SWITCHES
1 THRU 5 CLOSED
{ROCKER DOWN ON
SIDE ADJACENT TO
THE NUMBERS)
OPTION
SWITCH S4
OPTION SWITCHES
6 THRU 10 OPEN
{ROCKER DOWN ON
SIDE OPPOSITE
THE NUMBERS)
202T MODEM
(MODULATOR-
DEMODULATOR)
LOCAL COPY
Figure 4. Location of Option Switches
REVERSE
CHANNEL
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