IBM PCI Multiprotocol Adapter

Two IBM® PCI Multiprotocol Adapters can operate concurrently. The configuration specifies one adapter with Communication Port MPA0 and the second adapter with Communication Port MPA1. When the link is activated, MPA0 is the first PCI Multiprotocol Adapter that the operating system finds and MPA1 is the second adapter found. If more than one PCI Multiprotocol adapter is installed on a machine and you are unsure which adapter the operating system will find first, you may want to perform an isolated test to determine which adapter is connected to which Communication Port. One suggestion is to disconnect the modems connected to the adapter from the telephone line and then try to start each link individually. By watching the modems, you should be able to determine which modem is connected to which Communication Port. Then the modems can be attached to the proper network. If a single PCI Multiprotocol Adapter is used, the configuration file must specify MPA0 as the Communication Port.

Note:
If a Personal Communications configuration is using this adapter, and a PCI MPA adapter is added or removed from the system, Personal Communications may have to be reconfigured.

An ISA-bus MPA and IBM® PCI Multiprotocol Adapter can be used concurrently, as long as the ISA-bus MPA adapter is configured as MPA1.

The IBM® PCI Multiprotocol Adapter supports:
  • Leased and switched connections
  • Speeds up to 56 kbps
  • Switched and Constant Request To Send (RTS)
  • NRZ and NRZI encoding schemes

The IRQ number on the device page adapter property sheet is ignored.