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Configure Branch
8-73980-A2-GB30-20 November 1996
Configuration
T
ables
The modem’s configuration options are arranged into
eight groups based upon functionality: DTE
Interface (Table 8-1), DTE Dialer (Table 8-2),
Line Dialer (Table 8-3), Dial Line (Table 8-4),
Leased Line (Table 8-5), V.42/MNP/Buffer (Table 8-6),
T
ests (T
able 8-7), and Misc (Table 8-8).
Throughout these tables, two selections frequently
appear on the LCD: Enable and Disable. Unless otherwise
stated, Enable selects a configuration option and makes it
available for use; Disable makes a configuration option
unavailable for use.
The remainder of this chapter discusses each
configuration options group in detail, listing factory
defaults, definitions, and AT command equivalents.
DTE Interface
The DTE Interface configuration options contain
RS-232D (CCITT V.24) and asynchronous character
format information essential for maintaining a connection
and for transmitting data between the DTE and the
modem.
Table 8-1 shows each DTE Interface configuration
option as it appears on the LCD, with the Async Dial
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, a description of the available
selections, and any equivalent A
T commands.
Table 8-1
(1 of 7)
DTE Interface Configuration Options
Async/Sync Mode: Async
Nxt Async Sync
Asynchronous/Synchronous Mode. Determines whether the modem operates in Asynchronous mode or Synchronous
mode. If the AT command set is enabled and this configuration option is set for Sync, then the modem operates in Async
mode when offline.
For Async Dial and UNIX Dial, Async is the factory default. For Sync Dial and Sync Leased, Sync is the factory default.
AT command equivalents are &M
n
and &Q
n
.
*Async DTE Rate:19200
Nxt 19200 1
15200 76800 57600 38400 14400 12000 9600 7200 4800 2400 1200 0–300
Asynchronous DTE Data Rate. Identifies the asynchronous DTE’s operating rate to the modem. Data rates from
115,200 bps to 300 bps are supported.
To originate calls in 76,800 bps Sun Workstationr environments, use either DCP dialing, DTR dialing, or handset dialing.
The modem does not support AT command dialing at this data rate.
To prevent losing data in 115,200 bps applications, a 16650 (or faster) UART on the PC’s serial port is required, as well
as a communications package which can take advantage of its 16-byte buffer. In addition, a 386 25-MHz (or faster) PC is
required, and the RS-232 cable must be 6 feet or less to minimize capacitance.
NOTE: This configuration option is ignored in Async Direct mode and synchronous mode since the DTE rate always
equals the VF rate.
The factory default is 19200 bps.
There is no AT command equivalent; AT prefix determines Async DTE Rate.
* This configuration option only appears if Async/Sync Mode is configured for Async.