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Configure the AS/400, iSeries or eServer i5 for TN5250e
TN5250e is an extension of the Telnet display and printer protocol used in the IBM AS/400 systems. I-O
has customized the TN5250e protocol used in I-O 5250 Printer Emulation modules to include the same
laser and dot-matrix printer emulations as are used in all I-O LAN Printer Server products. The host
AS/400 sees a TN5250e printer as a 3812 page printer, yet I-O's LAN Print Servers allow you to attach
either laser or dot matrix printers.
I-O recommends using TN5250e as the preferred AS/400 LAN printing protocol over the TCP/IP
LPR/LPD printing processes. This is because TN5250e is easy to configure, fast in operation, and with
I-O's enhanced printer emulations provides nearly the same functionality as an twinax-attached printer
for both laser and dot-matrix printers.
To configure your AS/400 to support TN5250e printing, the AS/400 must meet the following
requirements:
Be running OS/400 V3R2 or newer, with the most recent applicable PTF's applied.
Have the most recent version of Client Access installed on the AS/400.
Have the most recent version of the Telnet server installed on the AS/400.
Have the AS/400's auto configuration function turned on.
Make certain that the AS/400 can create virtual devices and there are a sufficient number of devices
available to be created.
This is done using the AS/400 command:
CHGSYSVAL SYSVAL(QAUTOVRT) + VALUE(?)
The "?" is the maximum number of user-created virtual devices that can be created.
If the OS/400 version is earlier than V4R2, the Telnet server will need to be started using the
AS/400 command:
STRTCPSVR SERVER(*TELNET)
V4R2 and newer versions will automatically start the Telnet server.
After these requirements are met, the AS/400 (referred herein as IBM host or host) will automatically
configure the I-O 5250 Printer session the first time you attempt to make a connection. The IBM host
will create a 3812 paper printer device and assign a device name, or use the name you determine when
configuring the I-O 5250 Printer session.
Thin Client User's Guide
Creating Connections
26
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