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SNMP MIB Objects
E-18
3162-A2-GB20-40August 2000
General Port Table – “rs232PortType” Object (rs232PortEntry 2)
This object is used to identify the port’s hardware type. Only the following values
are supported by the DSU/CSU.
H rs232(2) – Used to identify the COM port.
H rs422(3) – Used to identify synchronous data ports that are configured as
EIA-530-A or RS-449.
H V35(5) – Used to identify synchronous data ports that are configured as V.35.
General Port Table – “rs232PortInSigNumber” Object (rs232PortEntry 3)
This object contains the number of input signals contained in the input signal
table. This is the number of signals that can be detected. This number is 2 for the
synchronous data ports and 0 for the COM port.
General Port Table – “rs232PortOutSigNumber” Object (rs232PortEntry 4)
This object contains the number of output signals contained in the output signal
table. This is the number of signals that can be asserted. This number is 2 for the
synchronous data ports and 0 for the COM port.
General Port Table – “rs232PortInSpeed” Object (rs232PortEntry 5)
This object contains the port’s input speed in bits per second. For the DSU/CSU,
the rs232PortInSpeed object has the same value as the rs232PortOutSpeed
object. The input speed of a synchronous data port is determined by the channel
configuration and cannot be changed through this object. Thus, for the
synchronous data ports, this object is read-only. The input speed of the COM port
is the currently configured speed. Setting of this value for the COM port causes
the configured port speed to be changed.
General Port Table – “rs232PortOutSpeed” Object (rs232PortEntry 6)
This object contains the port’s output speed in bits per second. For the
DSU/CSU, the rs232PortInSpeed object has the same value as the
rs232PortOutSpeed object. The input speed of a synchronous data port is
determined by the channel configuration and cannot be changed through this
object. Thus, for the synchronous data ports, this object is read-only. The input
speed of the COM port is the currently configured speed. Setting of this value for
the COM port causes the configured port speed to be changed.