MX8000 Installation and Operation Guide
8–8
Table 8–11: System Messages
System Message
Description
Hex Code to ASCII Character
<$41><2 ASCII Byte LC #>
Common Listen-in Begin, followed by the line card number.
<$41> = A
<$42><2 ASCII Byte LC #>
Common Listen-in End, followed by the line card number.
<$42> = B
<$43><2 ASCII Byte LC #>
Common Listen-in Extended, followed by the line card
number.
<$43> = C
<$44><2 ASCII Byte LC #>
PBX Listen-in Begin, followed by the line card number.
<$44> = D
<$45><2 ASCII Byte LC #>
PBX Listen-in Busy, followed by the line card Line card
number.
<$45> = E
<$46><2 ASCII Byte LC #>
Manually Aborted Call, followed by the line card number.
<$46> = F
<$61>
System Power Up
<$61> = a
<$62><2 ASCII Byte User #>
Local Program Begin, followed by the user number.
<$62> = b
<$63><2 ASCII Byte User #>
Local Program End, followed by the user number.
<$63> = c
<$64><2 ASCII Byte User #>
Local Program Fail, followed by the user number.
<$64> = d
<$65><2 ASCII Byte User #>
System Date Change, followed by the user number.
<$65> = e
<$66><2 ASCII Byte User #>
System Time Change, followed by the user number.
<$66> = f
<$67>
Message Queue Above Warning
<$67> = g
<$68>
Message Queue Below Warning
<$68> = h
<$69>
Message Queue Full
<$69> = i
<$6A>
Message Queue Full Restore
<$6A> = j
<$6B>
Printer Off Line
<$6B> = k
<$6B>
Printer Paper Out
<$6B> = l
<$6D>
Printer Restore
<$6B> = m
<$6E><2 ASCII byte LC #>
LinePort or Slave Added
<$6E> = n
<$6F><2 ASCII byte LC #>
LinePort or Slave Deleted
<$6F> = o
<$70><2 ASCII byte LC #>
LinePort or Slave Trouble
<$70> = p
<$71><2 ASCII byte LC #>
Phone Line Trouble
<$71> = q
<$72><2 ASCII byte LC #>
LinePort or Slave Trouble Restore
<$72> = r
<$73><2 ASCII byte LC #>
Phone Line Restore
<$73> = s
<$74><2 ASCII byte LC #>
Line Card Modified
<$74> = t
<$77>
AC Lost
<$77> = w
<$78>
AC Restore
<$78> = x
<$79><4 ASCII byte Receiver
Model #>
Battery/DC Trouble – Note: The Receiver Model Number
output is 8000 indicating the MX8000 Receiver.
<$79> = y
<$7A><2 ASCII byte Receiver
Model #>
Battery/DC Trouble Restore – Note: The Receiver Model
Number output is 8000 indicating the MX8000 Receiver.
<$7A> = z
<$7B>
Computer Trouble
<$7B> = {
<$7D>
Computer Restore
<$7D> = }
<$7E><2 ASCII byte User #>
Log Off Operator
<$7E> = ~
<$7F><2 ASCII byte User #>
Log On Operator
<$7F> = DEL
8.4.4 Heart Beat Message Block
A heartbeat is a message sent to the automation computer which is used to supervise the communication
link between the receiver and the automation computer. A heartbeat can be identified by the reference
number used in the AE header that will always be 0000. How often the heart beat message is sent to the
automation computer is a programmable option in the receiver. (See Section 5.4.3.5.)
A typical heart beat message looks like this:
Example:
<$03><“051997”><$22><“074905”><$22><“01”><$22><“0000”><$22><V-byte><$0D>
Table 8–12 lists the components shown in the above example and gives a description for each of them.
