Page280 of 544 M2317Telephone
553-3011-100 Standard14.00 January 2002
The Asynchronous Data Option is equipped with a dialing feature which
enables the user to originate data calls to local and remote Data Terminal
Equipment (DTE) directly from a data terminal keyboard or personal
computer. The dialing feature, in conjunction with the communications
firmware provided with the Data Option, supports most of the HAYES
Smartmodem dialing features. Terminal emulation packages can also be used
with the dialing feature.

Data characteristics

The M2317 Asynchronous Data Option communicates with Data Terminal
Equipment (DTE) having characteristics as shown in Table89.
Table 8 9
M2317 Asynchronous Data Option characteristics
Features description

Firmware features

Firmware is chip-dependent and cannot be changed or altered on site. As a
general rule, all firmware is on ROM microchips.
Firmware functions
The following functions are performed by firmware in the M2317 Telephone:
•Predial
•Last Number Redial
•Saved Number
•Redial Saved Number
Data type ASCII
Synchronization Asynchronous, Start-Stop
Number of Bits 8 bits
Parity none (unchecked)
Data rate 300, 1200, 2400, 4800,
9600, 19200 bits per second (autobaud)
Stop bits 2 bits for 110 bits per second;
1 bit for all other speeds
Transmission Full duplex