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LINKMED® HL7 TCP/IP Communication Drivers
communicate with remote systems through TCP/IP socket connections.
HL7 messages can be wrapped using HL7 MLLP protocols or user-defined
protocols (headers and trailers). The LINKMED® TCP/IP
Drivers communication protocols are configured in the Drivers
Options Configuration window.
LINKMED® HL7 TCP/IP Communication Drivers can send and receive
information in virtually any formats over any protocols, effectively
bridging other systems with the LINKMED® Interface environment.
Currently there are two types of LINKMED® HL7 TCP/IP
Receiver (File-based Receiver and Mapper-based Receiver)
File-based Receiver: Coverts inbound HL7 stream
to HL7 message
Mapper-based Receiver: Parses inbound HL7 stream
directly to LINKMED® interface intermediate database
and client's SQL database or to output directory. The following
are basic functionalities of the LINKMED® HL7 TCP/IP Receiver
and Transmitter.
LINKMED® HL7 TCP/IP Drivers communicate over two TCP/IP
sockets (ports):
-
ADT/Order port: LINKMED®
HL7 TCP/IP Receiver is the "server", accepting connections
from client(s). HL7 ADT/Order messages are sent over this
socket, and acknowledgements for those messages are sent
back over the same socket. LINKMED® HL7 TCP/IP Receiver
accepts connection from the HIS on ADT/Order port immediately
upon system start
-
Report port: LINKMED®
HL7 TCP/IP Transmitter is the "client", connecting to the HIS. Reports
are sent over this socket, and acknowledgements for those
reports are expected over the same socket.
LINKMED® HL7 TCP/IP Transmitter attempts to connect to
the HIS server upon system start up
Sending HL7 Message Acknowledgements:
LINKMED® HL7 TCP/IP Receiver automatically sends standard
HL7 ACK to the sender system (client) following sucessful
receiving HL7 ADT message and sends "Order Response"
ACK (ORR^O02) following sucessful receiving ORM message.
-
The ACK message is formatted as follow:
ADT message ACK:
MSH|^~\&|SA|SF|RA|RFI|200409121433||ACK|4000156|P|2.3|
MSA|AA|CHPFORDR|| -9999
Order Response (ORR) message ACK:
MSH|^~\&|SA|SF|RA|RFI|200409121433||ORR^O02|4000156|P|2.3|
MSA|AA|CHPFORDR|| -9999
AA=Application Accept- LINKMED® accepted
the message
-
The NAK message is formatted as follow:
ADT message NAK:
MSH|^~\&||LINKMED|||200409121433||ACK|24595796|P|2.4|
MSA|AR|L1085514220875|Invalid Version (2.4)|-9999
Order (ORM) message NAK:
MSH|^~\&||LINKMED|||200409121433||ORR^O02|24595796|P|2.4|
MSA|AR|L1085514220875|Invalid Version (2.4)|-9999
AR=Application Reject- LINKMED® rejected the
message. The text message in MSA sequence 3 contains reason(s)
for the rejection
- Receiving HL7 Message Acknowledgments:
LINKMED® HL7 TCP/IP Transmitter expects HIS or EMR system
to send HL7 ACK message back on every successful result
message received. The ACK message should be formatted as
follows:
MSH|^~\&|SA|SF|RA|RFI|200409121433||ACK|4000156|P|2.3|
MSA|AA|CHPFORDR|| -9999
MSA= Position 1
AA=Application Accept- HIS or clinical system accepts
LINKMED® result message
AR=Application Reject- HIS rejects LINKMED®
result message
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