Theargument error message is the user-congured alert message. The argument HL7 is the
sourcecomponent (this must be “HL7”).
Note– The alerter.fatal("error msg","HL7")method is only applicable to the packaged
TCP/IPHL7 Collaborations.
TheExit recourse action should be applied to any error condition that requires human
interventionto correct an error. Once the error condition is resolved, the Collaboration can be
restartedfrom the Enterprise Manager.
TCP/IPHL7 Adapter Operation
Thefollowing topics explain the basic elements of the TCP/IP HL7 Adapter’sgeneral operation:
■“Direction”on page 22
■“ConnectionType” on page 22
■“LowerLayer Protocol” on page 23
■“HL7Acknowledgment Level” on page 23
■“Journaling”on page 23
■“ErrorQueues” on page 24
■“Alertsand Monitoring” on page 24
■“Supportfor HL7 Version 2.5 SFT Segments” on page 24
■“DelayedAcknowledgements” on page 24

Direction

TheTCP/IP HL7 Adapter can be congured as either HL7 inbound or HL7 outbound. This
optionis determined automatically by the Adapter’sbinding (link) in the C onnectivity Map.

ConnectionType

Theconnection type indicates how the Adapter establishes a TCP/IP connection. The role can
beas a Client, where the RA connects to the external, or as a Server, where the RA waits for a
connection.
■Connectedas a TCP/IP HL7 Client
Asa TCP/IP HL7 client, the Adapter connects to external server (host/port) and establishes
aconnection (in active mode).
■Connectedas a TCP/IP HL7 Server
TheAdapter waits and listens to a specic port for incoming connection requests from an
externalclient. Once a request is received, the Adapter accepts the request and establishes a
connection(in passive mode).
SunAdapterfor TCP/IP HL7 Overview
SunAdapterfor TCP/IP HL7 User's Guide • Oc tober 200922