Bay Technical Associates none manual Table C-2 Network Interfaces Available on ARNs

Installing and Operating BayStack ARN Routers

	Table C-2 describes each interface.
Table C-2.	Network Interfaces Available on ARNs
Network
Interface		Description
Ethernet and		Supports the Ethernet and IEEE 802.3 standards that provide LAN connectivity. The
Second Ethernet		ARN can have up to two Ethernet interfaces -- one on the base module and one on an
		expansion module.
		The Ethernet interfaces on both the base module and expansion module include a
		10Base-T and an 802.3 AUI port; however, you can use only one port (10Base-T or
		AUI) on each module at a time.
		The 10Base-T interface provides unshielded twisted-pair support; the AUI interface
		provides broadband, baseband, fiber, and shielded twisted-pair support, depending on
		the transceiver and cabling you use.
Token Ring and		Supports the Token Ring and IEEE 802.5 standards that provide LAN connectivity. The
Second Token		ARN can have up to two token ring interfaces -- one on the base module and one on an
Ring		expansion module.
		The token ring base module supports a 9-pin (DB-9) STP token ring interface. The
		token ring expansion module supports both a 9-pin (DB-9) STP connector and a UTP
		connector; however, you can use only one port (STP or UTP) on the expansion module
		at a time.
		Both token ring connector types support the 802.5 media access control (MAC)
		token-passing protocol, the 802.2 Type 1 (connectionless) protocol, the 802.2 Type 2
		(connection-oriented) protocol, and the 16-Mb/s Early Token Release (ETR) protocol
		over the appropriate cabling.
Serial		Provides WAN connectivity. ARN models can have up to five serial ports (three on an
		expansion module and up to two adapter modules).
		Each port can operate independently with RS-232, RS-422, RS-449, RS-530, V.28,
		V.35, and X.21 cables. Serial capability allows internal or external clocking.
ISDN BRI		Supports an S/T or U interface. The BRI provides two B channels, and supports full
		D-channel signaling and call setup/tear-down as defined in 1988 CCITT (now ITU-T)
		Q.921 and Q.931. For more information on ISDN, functional groups, or reference
		points, refer to Configuring Dial Services.
		The ISDN BRI option is available as an adapter module for any ARN model.
56/64K DSU/CSU		Supports a 56/64K DSU/CSU interface.
V.34 Modem		Provides a V.34 modem interface.

C-4 114200 Rev. A