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BOCA PRO16 Reference Guide
By default, your modem will use the same speed as when the last AT
command was issued.
Line Speeds
The line speed at which your modem operates is determined by the ATB
command. The line speed must be selected before you select V.25bis
mode.
By default B0 is selected. This will automatically select the highest
common speed with the remote modem. See B command.
Refer to the chapter titled ‘Getting Started’ for details of how to set the
line speed of your modem.
Modem Cable
In order to operate correctly, your modem cable must support the
following signals:
DB25 Pin Signal
2 Transmit Data (TxD)
3 Receive Data (RxD)
4 Request to Send (RTS)
5 Clear to Send (CTS)
6 Data Set Ready (DSR)
7 Signal Ground
8 Data Carrier Detect (DCD)
15 Transmit Clock (TxC)†
17 Receive Clock (RxC)†
20 Data Terminal Ready (DTR)
22 Ring Indicator (RI)
24 External Clock (XCLK)†
† - Not required for asynchronous operation
Synchronous Character Encoding
Your modem supports both NRZ and NRZI character encoding when
operating in synchronous mode. The #N command is used to select the
character encoding technique suitable for use with the computer to
which your modem is connected.
Refer to the chapter titled ‘Command Descriptions’ for details of the #N
command.
V.25bis Operations
V.25bis
Operations
pro16ref.pm6 6/14/96, 2:37 PM77
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