Test Configuration Options; Test - Paradyne COMSPHERE 3910 Installation And Operation Manual

COMSPHERE 3900 Series Modems
RdcdAsyncBufSiz: Disable
End Disable Enable
This configuration option is only available if Async/Sync Mode is configured for Async, and Error
Control Mode is configured for BufferMode, V42MNPorBuf, MNP_or_Buffr, and LAPM_or_Bufr mode.
Reduced Asynchronous Buffer Size. When enabled, the modem's buffer size is limited to a maximum of
20 characters.
The AT command is S-Register S97= n , where n is 0 for Disable and 1 for Enable.

Test

The Test configuration options determine specifics, such as the duration of a test, for the various
diagnostic tests available to the modem.
Table 4-7 shows each Test configuration option as it appears on the LCD, with the Sync Leased
factory default setting (the default value if the modem is just being installed) shown following the
colon ( : ) on the first line and with all available selections listed on the second line. Following this
is a description of the configuration option. Factory default settings are listed in Appendix F.
DTE RL (CT140): Disable
Nxt Disable Enable
DTE Remote Loopback. Controls the use of Pin 21 of the EIA-232-D/CCITT V.24 interface by the DTE to
initiate a remote loopback. An Abort command or test time-out ends this test.
This configuration option is not available if the LeasedLine Rate is configured for TMp.
Enable
The DTE forces the modem into remote loopback when the signal on Pin 21 (CCITT 140) is turned
ON. Remote Loop ends when the signal is dropped.
Disable
The DTE does not initiate remote loopback in response to the signal on Pin 21.
The AT command is S-Register S51= n , where n is 0 for Disable and 1 for Enable.
DTE LL (CT141): Disable
Nxt Disable Enable
DTE Local Loopback. Controls the use of Pin 18 of the EIA-232-D/CCITT V.24 interface by the DTE to
initiate a local loopback. An Abort command or test time-out ends this test.
Enable
The DTE forces the modem into local loopback when the signal on Pin 18 (CCITT 141) is turned
ON. Local loopback ends when the signal is dropped.
Disable
The DTE will not initiate local loopback in response to the signal on Pin 18.
The AT command is S-Register S52= n , where n is 0 for Disable and 1 for Enable.
4-46
Table 4-6
(8 of 8)
V.42/MNP/Buffer Configuration Options
Table 4-7
(1 of 2)

Test Configuration Options

November 1996 3910-A2-GN32-30