US Robotics COURIER Manual de usuario descargar pdf (Pagina 107)

U.S. Robotics I-modem Command Reference

Flow Control • Page 10-6

&I4 Hewlett PackardÐTerminal mode. Applies only to I-modems attached to

terminals in an HP system that uses the ENQ/ACK protocol

. Use in ARQ

mode only.

&I5 Enable ßow control when the connection is not under error control. For this

to work, the remote device must also have &I5 capability.

In ARQ mode, an I-modem set to &I5 operates the same as it does when set

to &I2. It acts on your XON/XOFF commands, but does not pass them to

the remote system. The error-control protocol

enables the devices to con-

trol the ßow of data on the phone link.

In non-ARQ mode, an I-modem set to &I5 operates as though ßow control

were disabled (&I0); it does not look for your typed XON/XOFF com-

mands. However, it does look for XON/XOFF characters coming in over

the phone link. When the remote device sends XON/XOFF com-mands, the

I-modem either resumes or stops transmitting data over the link and drops

the characters from the data stream.

If both devices are set to &I5, operators at each end can signal the remote

device to stop sending, thereby controlling the data ßow on the phone link

1 2 ... 102 103 104 105 106 107 108 109 110 111 112 ... 307 308

Sin comentarios

US Robotics COURIER Manual de usuario Pagina 107