Interface Configuration Guide 7705 SAR Interfaces
Edition: 01 3HE 11011 AAAC TQZZA 411
device-gender
Syntax device-gender {dte | dce}
Context config>port>serial>rs232
config>port>serial>v35
config>port>serial>x21
Description This command configures the gender of the device.
Data and control signals are transmitted and received over wire pairs. The gender of a device
indicates which wire in the pair is used to send and receive the signal.
On SDI ports, the data and control signals are electrically wired as DCE. Regardless of the
gender configured, the Tx pin on the port is always an input pin and the Rx pin on the port is
always an output pin. Changing an SDI port from DCE to DTE does not change the pin
orientation. Therefore, when a port is configured as DTE, a crossover cable is required in
order to interconnect with some serial devices.
If the port has been enabled for an RS-530 interface through the use of an adapter cable, only
DCE operation is supported.
Default dce
Parameters dte — the device is performing the role of the data terminal equipment
dce — the device is performing the role of the data communications equipment
device-mode
Syntax device-mode {synchronous | asynchronous}
Context config>port>serial>rs232
config>port>serial>v35
config>port>serial>x21
Description This command configures the mode of operation for the device. An RS-232 or X.21 channel
can be configured for either synchronous or asynchronous mode. Asynchronous mode is not
supported on a V.35 channel; this channel can only be configured for synchronous mode.
Asynchronous mode is supported only on channels with subrate speeds of 38 400 b/s or less.
Default synchronous
Parameters synchronous — transmits data continuously based on timing
asynchronous — transmits data one character at a time
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