Cabletron Systems Netlink FRX8000, User Manual

Page: 205 / 468

Configuring Async Pads 13-15
Called Address
is the ID of the remote device, and is placed into the called address field of the Call
Request.
Retry Count
is the number of times an autocall will be sent to the remote device.
(
0
means indefinitely.)
Retry Interval
is the time between autocall attempts.
User Data
is an (optional) string of ASCII characters that will be placed verbatim into the user
data field of an outgoing Call Request packet.
Facilities
is an (optional) string of facility codes and related data that will be placed verbatim
into the facility field of an outgoing Call Request packet.
Modem Signal Options
RTS-CTS H/W Flow Control
enables hardware flow control through stop/start of data using RTS (pin 4), CTS
(pin 5), and CD (pin 8) on the RS-232 interface. Flow control is usually necessary to
maintain communication without data loss between devices or channels with different
throughput capabilities.
RTS-CTS flow control works only on a physical DTE port, as physical DCE ports
have RTS looped back internally to CTS.
The other common method of flow control is XON-XOFF (parameters 5 and 12 of the
async PAD profile); however, when the data itself is likely to contain these characters
(for example, in a binary file), XON-XOFF may become inadequate.
DTR/RTS Active When VC Up
if
Y
means that DTR and RTS will be asserted only after a virtual circuit is established.
If
N
, both signals will be asserted as soon as the port is enabled.
Input Signal Detection
determines which signal(s) will be read to determine that the link is up:
0
= none required
1
= DSR
2
= DSR & DCD
3
= DSR & DCD & Call
4
= DSR & CTS
5
= DSR, DCD, & CTS
Disconnect Options
Disconnect Timer
is an inactivity timer that determines the length of time the port can go without trans-
mitting or receiving characters, as determined by the parameters
Timeout if No Login,
Timeout if No Call,
and
Timeout if No Data
. (The actual time-out may be up to thirty
seconds after the number of minutes specified.)