Revised 2017-08-31
Advanced Tab
Drawing No. LP0997-C
GWLNX
Sixnet
®
Series SN/RAM
®
6000 & RAM 9000 Software Manual
- 245 -
Transparent:
Allow raw communication between the Dial port and the TCP Connection.
Visa:
Enable local Visa I engine. This will process one transaction, and issue an EOT after the transaction
response has been sent to the dial device.
Visa2:
Enable local Visa II engine. After a transaction is complete and ENQ will be issued to query the next
transaction in sequence. If there is no response to the ENQ, then an EOT is issued.
Timer:
Transparent Mode is the inter-character delay (in milliseconds) used on the serial side to determine
when a remote device is finished transmitting. A low value may generate a faster response, but can send many
TCP packets and ‘fragment’ the serial data packets. A higher value will collect a larger amount of data into a
single TCP packet, and will generally keep packet boundaries more intact. Visa mode is unused. The
recommended setting for this field is 150 for Transactions and 10 for some Streaming Protocols (ATM
Management Protocols).
Data Mode:
The following data mode is supported:
8N1:
Data will be treated as full 8 bits valid. If the serial device is transmitting 7E1, then 7E1 formatted data
will be transmitted to the TCP side.
7E1:
Process data as if in 7E1 format. If the serial device is transmitting 7E1, then appropriate parity will be
stripped/added so that communication on the TCP side will be in 8N1.
The recommended setting for Transparent mode: As needed for various serial devices and TCP hosts.
The recommended setting for Visa mode: Leave this setting at 8N1. Automatic 7E1 detection is used.
Spoof ENQ:
The recommended setting for this field is
No
.
Transparent Mode:
This will enable an ENQ packet to be sent to the serial device to initiate a transaction.
Up to 5 ENQ’s will be sent while waiting.
Visa Mode:
Unused. The Visa engine will automatically issue ENQ’s as needed, according to the GWLNX
config file.
No Rx Before Tx:
Discarding data before transmitting in supported Message Mode. The recommended setting
for this field is
No
.
Transparent Mode:
This will discard any data received from the serial side, prior to transmitting some data
to the remote serial device. This can be useful to discard initial line noise remnants from modem
connections before an ENQ is issued (or other start-data message types from a TCP host).
Visa Mode:
Unused. This is automatically enabled in the Visa engine, as it awaits a STX.
Disable Ack:
Acknowledgement behavior in supported Message Mode. The recommended setting for this
field is No.
Transparent Mode:
Unused.
Visa Mode:
Once a message is received from the serial device (ATM/POS) and the LRC is valid, this will
disable sending an ACK. Certain ATP/POS devices will fail if sent an ACK, and rather use the response
message from the TCP host as an implied ACK. Certain ATM/POS devices require an ACK before
receiving the response message from the TCP host.
Pass Through Ack:
Passing Acknowledgment in supported Message Mode. The recommended setting for
this field is No, unless using a SmartConnect device at the host processing side.
Transparent Mode:
Unused.
Visa Mode:
When an ACK is received from an ATM/POS device, pass that up to the host processor.
