Owner`s manual

46
MT64DSU Owner's Manual
Configuration Options
This section describes the configuration parameters option settings.
Corresponding S-Registers and AT commands are listed for each
option or function.
Synchronous Options
If the MultiDSU64K is configured for synchronous operation (*S4=1),
the following options apply:
DTE Dialing (S2) - Selects the option for dialing synchronously.
The options are V.25bis, DTR, V.25bis or DTR and DISABLED.
When V.25bis is selected, the unit auto-dials in accordance with
V.25bis commands. When DTR is selected, the unit dials a stored
number in the memory location of 0 whenever DTR goes from low-
to-high. If the combination option of V.25bis or DTR is selected,
then the unit responds to either V.25bis commands or DTR going
high. The DISABLED option prevents any auto-dialing. The factory
default setting is V.25bis-- S2 = 2.
V.25bis Auto-Dial (S16) - The V.25bis data format may be either bit-
oriented (HDLC-like) or byte-oriented (character) depending on the
protocol requirements of the DTE. The factory default setting is Bit-
oriented-- S16 = 0.
Note: that upon power-up the MultiDSU64K responds to default
DIP-Switch settings.
Asynchronous Options
If the MultiDSU64K is configured for asynchronous data (S4=0), the
following options apply:
Data Bits (S12) - Sets the MultiDSU64K data character format for
either 7 or 8 data bits. Data bits do not include start, stop or parity
bits. The factory default setting is for 8 bits--S12 = 0.
Stop Bits (S13) - Sets the MultiDSU64K data character for 1, 1.5 or
2 stop bits. The factory default setting is 1-- S13 = 0.
Parity (S14) - Sets the MultiDSU64K data character format to use
NONE, EVEN or, ODD parity. The factory default setting is NONE--
S14 = 0.