ACC Error Guide
ZX25D System Messages
CLASS: Warning 500-599
Chapter 12 273
zx25d 536 Link <#>: Interrupt confirm pkt on SVC ZLU <#> (LCN <#>)
in improper state (<state string>). Reset or Clear has been issued.
Explanation: An inbound Interrupt Confirmation packet arrived on
an LCN whose current state indicates that this packet
type is invalid. This would be true any time an
Interrupt Confirmation packet arrived when an
Interrupt packet had not been sent. The <state string>
parameter indicates the current state that the LCN is
in. Possible state string values are described in
message 512.
Action: No action is necessary. This is an informational
message.
zx25d 537 Link <#>: Invalid Option word for SVC ZLU <#>. Option
word indicated calls can not be sent or received. ZLU will be set to an
SVC.IO in the option word.
Explanation: The option word for a configured VC indicates where
the VC is an SVC or a PVC. For SVCs, it also indicates
if the SVC can place outbound calls and/or receive
inbound calls. This message indicates that the VC was
configured as an SVC that is not allowed to either
receive or send calls. This is illegal. The SVC has
automatically been reconfigured to allow both inbound
and outbound calls.
Action: Correct the configuration of the virtual circuit ZLU.










