SNMP MIB ObjectsE-233160-A2-GB21-80 March 1999Synchronous Port Table, RS-232-like MIBThe synchronous port table contains an entry for each of the synchronous dataports and the MODEM or COM port when the port is configured for synchronousoperation. For the DSU/CSU, the entries in the table that are counters(rs232SyncPortEntry 3–7) are used to collect statistics and are not supported.Synchronous Port Table – “rs232SyncPortClockSource”(rs232SyncPortEntry 2)This object specifies the clock source for the port. Only the following values aresupported by the DSU/CSU. internal(1) – The port uses an internal clock. external(2) – The port uses an external clock.Input Signal Table, RS-232-like MIBThis table contains entries for the input signals that can be detected by the unitfor each of the synchronous data ports.Input Signal Table – “rs232InSigName” (rs232InSigEntry 2)This object contains the identification of a hardware input signal. Only thefollowing values are supported by the DSU/CSU. rts(1) – Request-To-Send. dtr(4) – Data Terminal Ready.Input Signal Table – “rs232InSigState” (rs232InSigEntry 3)This object contains the current signal state. Only the following values aresupported by the DSU/CSU. on(2) – The signal is asserted. off(3) – The signal is not asserted.Input Signal Table – “rs232InSigChanges” (rs232InSigEntry 4)This object is not supported by the DSU/CSU.
