Black Box MD885C-R2 Modem User Manual


 
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Modem 34336
The Character Length option is available for all modes (asynchronous
operation only). It selects a character length of 8, 9, 10, or 11 bits for
character asynchronous operation. The same character length must be
selected for both the local and the remote modems. Use pushbuttons
1 and 3 to select the desired character length.
8 BITS: 1 start bit, 6 data bits and 1 or more stop bits.
9 BITS: 1 start bit, 7 data bits and 1 or more stop bits.
• 10 BITS: 1 start bit, 8 data bits, including parity, and 1 or more stop bits.
• 11 BITS: 1 start bit, 9 data bits, including parity, and 1 or more stop bits.
In Hayes mode, character length is set automatically under most conditions.
The Parity option is available for all modes. Parity selections are effective
only if error correction or buffer mode has been enabled or if the Modem
is in 2-Wire Dial (Hayes) mode. For most applications, parity should be set
to NONE.
The following parity options are available: NONE (no parity), ODD, EVEN,
MARK (parity is always 1) and SPACE (parity is always 0). All parity settings
except NONE automatically enable parity conversion (except in Hayes
mode), meaning that the parity of received data is converted to match the
selected parity option.
In Hayes mode, parity is set automatically under most conditions.