Nortel Networks M3905 Manual Do Utilizador
36
Additional asynchronous features
Voice call origination
By using a special cable, the MCA can communicate with two DTEs at the same
time. The primary channel is the main communication channel offering MCA
features. The second channel can respond to Voice Call Origination commands
(VCO) only. This provides the ability to make a voice call across the second
channel while simultaneously using the primary channel to transmit or receive
high speed data. Below is the pinout list to connect the second channel.
time. The primary channel is the main communication channel offering MCA
features. The second channel can respond to Voice Call Origination commands
(VCO) only. This provides the ability to make a voice call across the second
channel while simultaneously using the primary channel to transmit or receive
high speed data. Below is the pinout list to connect the second channel.
Note:
The VCO baud rate is 2400.
RS-232 pin
V.35 Pin
TxD
14
18
RxD
16
21
Gnd
7
7