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| Technical Specifications |
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| Table | AN/DC Network Interfaces | |
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| Network |
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| Interface |
| Description |
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| Ethernet and |
| Supports the Ethernet and IEEE 802.3 standards that provide LAN |
| Second Ethernet |
| connectivity. |
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| The Ethernet interfaces on an AN/DC include a |
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| an 802.3 AUI (XCVR) port; however, you can use only one port at a |
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| time. |
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| The UTP interface provides unshielded |
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| XCVR interface provides broadband, baseband, fiber, and shielded |
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| use. |
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| Synchronous |
| Provides WAN connectivity. AN/DC models can have either two |
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| (COM1 and COM2) or three (COM1, COM2, and COM3) |
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| synchronous ports. (The third synchronous interface option is |
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| available on any AN/DC model that this guide describes.) |
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| Each port can operate independently with |
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| V.28, V.35, and X.21 cables. Synchronous capability allows internal or |
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| external clocking. |
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| ISDN BRI |
| Supports an S/T interface (an |
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| provides 2 B channels, and supports full |
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| Q.931. For more information on ISDN, refer to Configuring Dial |
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| Services. |
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| Note that in the United States, an external |
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| provide the U interface to the carrier network. |
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| The ISDN BRI option is available on any AN/DC model. Note that |
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| only one synchronous port, COM2, operates in AN/DC models that |
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| include ISDN BRI support. |
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| Data Collection |
| Gathers RMON statistics. Refer to Connecting BayStack AN and |
| Module (DCM) |
| ANH Systems to a Network for information. |
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