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The Token Ring port adapters provide IBM Token Ring or IEEE 802.5 Token Ring interfaces. Each Token Ring interface can be set for 4 Mbps or 16 Mbps.
Cisco has enhanced its Token Ring solution for Cisco 7200 and 7500 series routers with the introduction of the Dedicated Token Ring port adapter (PA-4R-DTR). The Dedicated Token Ring port adapter offers increased functionality, flexibility, and performance for Token Ring networks at a very attractive price per port. The new port adapter offers a broad range of connectivity options, from traditional 4- and 16 Mbps half-duplex Token Rings to direct attachment of high-speed, full-duplex devices such as servers and switches.
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Description |
Cisco 7100 |
Cisco 7200 |
Cisco 7200VXR |
Cisco 7500/VIP2 |
Part Number |
|---|---|---|---|---|---|
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4-port Dedicated Token Ring, 4/16 Mbps, HDX/FDX (Recommended) |
Yes |
Yes |
Yes |
Yes |
PA-4R-DTR |
|
4-port Token Ring 4/16 Mbps Half Duplex Port Adapter |
|
Yes |
|
Yes |
PA-4R |
|
4-port Token Ring 4/16 Mbps, Full Duplex Port Adapter |
|
Yes |
|
Yes |
PA-4R-FDX |
Figure 17-79: Dedicated Token Ring Port Adapter
