Peripherals
426 AS/400e System Handbook
other host port LED, inactive until the 2 Mbps Upgrade Kit is installed, indicates when
attached devices are running at the faster 2 Mbps data rate. It is also useful in debugging
network problems.
The 7299 Entry Hub supports shielded or unshielded RJ-45 at 1 Mbps or shielded RJ-45
when the 2 Mbps Upgrade kit is installed. The valid cable lengths are shown in the following
table.
The 7299 supports the 5250 Express Data Stream providing speed improvements of up to
four times. There are PTFs for V3R7 (or higher). The 5250 Express Data Stream also
requires an IBM 5250 Express ISA, PCI, or PC adapter card in a supported PC. The 7299
supports dual mode operation when attached to the AS/400 workstation controllers 2722 or
6180. Dual mode operation means that a port between 0 and 3 and a port between 4 and 7
are being poled at the same time on these eight port workstation controllers.
IBM 7299 Express Multiplexer
The IBM 7299-8MX Express Multiplexer allows the connection of up to 56 5250-type devices
to AS/400 systems using low-cost Category 5 or FTP cabling. The Express Multiplexer
enables all 5250-type devices to realize up to a 200% increased throughput when attached to
any of the faster PCI twinax workstation controllers. The 5250 Express Adapters and twinax
Network Stations can realize nearly 400% additional increased throughput for a total of nearly
800% greater throughput (as compared to other fiber multiplexers like the IBM 6299 Host
Port Multiplexer).
This enables devices to take advantage of the cost savings of twisted-pair cabling over
twinax, as well as the ability to use it for voice and other data connections.
The 7299 Express multiplexer connects up to eight host ports over fiber optic cabling. The
IBM 7299 Express Multiplexer is a time domain multiplexer. It can send data from two
different twinax WSCs over the same set of fiber optic cabling. You can mix input from twinax
WSCs from different AS/400, System/36, or 5394/5494 Remote Controller hosts over the
same fiber optic cable. This isn't possible with many other twinax multiplexer products.
The IBM 7299 Express Multiplexer fully supports the 5494 Remote Controller by sending all
56 devices over one pair of fiber cables.
Connection UTP Cat 3 at 1Mbps UTP Cat 5 at 1 Mbps UTP Cat 5 at 2 Mbps
*
Host to 7299
7299 to Device
2000-ft/610m
1800-ft/548m
2000-ft/610m
2200-ft/671m
1000-ft/305m
1500-ft/457m
* Requires installation of 2 Mbps Upgrade Kit in the 7299-2EN.
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