Terminal Server Handshake

I have a Cisco 2610 router (older model, not the XM version) with a
4-
Port Async/Sync Network Module (NM-4A/S). I'm trying to control a
serial
device through an IP connection to the router.

I will be sending small messages (about 100 bytes at a time using a
winsock connection) but the frequency of those messages will be faster
than the serial port can handle. For testing, I wrote a small app that
sends a bunch of messages one right after another to HyperTerminal
sitting on the end of the serial Comm port. The result is that the
first message gets there, but the rest are dropped. The winsock send
command thinks that the messages got there and reports no error. If I
add enough delay between messages, then it seems to work OK.
Nothing is returned on the receive end of the socket, even when I
turned on flowcontrol { software} on the line and enabled XON/XOFF on
the HyperTerminal side.

Is there a way to get some kind of handshake between the Winsock
connection and the serial device?

Thanks

Chris Nelson

.

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