7705 SAR Interfaces
400
Interface Configuration Guide
3HE 11011 AAAC TQZZA Edition: 01
3.13.2.16 Serial Commands
serial
Syntax serial
Context config>port
Description This command enables the context to configure RS-232, V.35, or X.21 parameters for a port
on a channelized 12-port Serial Data Interface card, or to configure RS-232 parameters for
an RS-232 port on the 7705 SAR-Hc or on the 4-port T1/E1 and RS-232 Combination
module. This context cannot be accessed by any other card.
A serial port configuration allows some or all of the bandwidth to be dedicated to a port by
aggregating a number of DS0s into a single bundle.
Serial data transmission rates below the rate of a single DS0, that is, less than 64 kb/s, are
achieved using a proprietary protocol called High Capacity Multiplexing (HCM). These
speeds, known as subrate speeds, are supported only on RS-232 and X.21 ports.
On the 12-port Serial Data Interface card, if the port has been enabled for an RS-530 interface
through the use of an adapter cable, X.21 configuration applies to the RS-530 interface.
There is no configuration specifically for RS-530 operation.
Default n/a
rs232
Syntax [no] rs232
Context config>port>serial
Description This command enables the context to configure RS-232 parameters for a channel. Once one
of the three ports on a connector has been configured for an RS-232 channel, the other two
ports on the connector can only be configured for RS-232.
The no form of this command deletes the RS-232 channel.
Default n/a
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