ACC Error Guide

ZCOM Status Codes
Terminal I/O Status Codes
Chapter 362
Terminal I/O Status Codes
Status Code Status Message/Description
IO_OK(00) No error detected
This is the normal status code returned when a request
has been carried out successfully.
IO_DSBL(01) Terminal disabled
The terminal needs to be enabled to carry out the
request.
IO_TX_TMOUT(02) Cable or local modem fault
The external transmit clock has stopped.
IO_BUSY(03) Terminal is busy for too long
The remote device is not allowing data to be
transmitted to it. The multiplexer has timed out.
IO_TX_RETRY(04) Too many retransmissions
The message has been re-transmitted too many times
with errors reported either by the remote device or
locally.
IO_ERR_RESP(05) Error in terminal response
The remote device has responded with an unrecognized
or corrupted message.
IO_TERM_TMOUT(06) No terminal response
The remote device has stopped communicating.
IO_CD_LOSS(07) Loss of carrier
The modem control signal DCD has been dropped.