Each product offering is characterized by a representative
scenario for its strengths. The adapters in this topic are listed
along with their specifications so that you can select for each specific
scenario.
| Item |
Description |
| 2-Port PCI Bus EIA 232 |
- PCI slot available.
- Up to two ports per adapter.
- Requires all EIA 232 ports.
- Asynchronous speeds to 230 Kbps.
|
| 8-Port PCI Bus EIA 232/EIA 422 |
- PCI slot available.
- Fewer than eight ports required with little or no expansion.
- Requires all EIA 232, all EIA 422, or a mix of EIA 232 and EIA 422
ports.
- Offload character interrupt and terminal I/O processing from the
main CPU.
- Asynchronous speeds to 230 Kbps.
- Maximum performance for high speed (33.6 Kbps) modems with data
compression.
|
| 128-Port Adapter (PCI) |
- A Micro
Channel, ISA, or PCI bus slot available. (For further information
about Micro
Channel or ISA, see 128-Port adapter (Micro Channel, ISA).)
- Sixteen ports now with expansion of up to 128 ports without additional
slots.
- Most distant terminal located about 90 meters (300 feet) from
the system at maximum data rate of 230 Kbps.
- Terminals planned: nearby or on premises, distant on premises,
and remote.
- Need high asynchronous throughput with low processor demand.
- Need terminal attached printer capability.
- Need to connect to remote premises through fiber-optic or synchronous
modems.
|