Nortel Networks Passport ARN Routers - Manual (Page 128)

Installing and Operating Passport ARN Routers
C-4 114200-E Rev 00
• One ISDN BRI U interface
• One V.34 modem interface
• One 56/64K DSU/CSU interface
• One FE1/E1 DSU/CSU interface
• One FT1/T1 DSU/CSU interface
• One X.25 PAD interface
Table C-2 describes each interface.
Table C-2. Network Interfaces Available on ARNs
Network
Interface
Description
Ethernet and
Second Ethernet Supports the Ethernet and IEEE 802.3 standards that provide LAN connectivity. The
ARN can have up to two Ethernet interfaces: one on the base module and one on an
expansion module.
The Ethernet interface on the base module can be a 10BASE-T, a 10/100BASE-Tx, or a
100BASE-Fx. The 10BASE-T can also be used as an expansion module. There are two
ports available for each 10BASE-T: a 10BASE-T and an 802.3 AUI port; however, you
can use only one of these ports (10BASE-T or AUI) on each module at a time.
The 10BASE-T and 10/100BASE-Tx interfaces provide unshielded twisted-pair
support; the 10BASE-T AUI interface provides broadband, baseband, fiber, and
shielded twisted-pair support, depending on the transceiver and cabling you use. The
100BASE-Fx provides fiber support.
Token Ring and
Second Token
Ring Supports the token ring and IEEE 802.5 standards that provide LAN connectivity. The
ARN can have up to two token ring interfaces: one on the base module and one on an
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.
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