5-6 User’s Reference Guide
For pinout information on the HD-15 to DB-25 modem cable, see “Pinouts for Auxiliary Port Modem Cable,” in
Appendix G, “Technical Specifications and Safety Information.”
Connecting to a LocalTalk network
If you have purchased the AppleTalk feature expansion kit, you can also connect the Router to an AppleTalk
network that uses either Ethernet or LocalTalk. Refer to the sheet of optional feature set add-ons in your
Netopia R2121 documentation folio.
The AppleTalk feature expansion kit includes a dual RJ-11 PhoneNET® connector that attaches to the Auxiliary
port on the Netopia R2121.
Netopia R2121 Auxiliary port for connecting to LocalTalk
Connect the male HD-15 end of the LocalTalk cable to the Auxiliary port on your Netopia R2121. Connect the
other end of the cable to your LocalTalk network. You can use only one connection on the Auxiliary port. You
cannot use both the PhoneNET connector and an external modem.
If your LocalTalk network is not based on standard PhoneNET cabling, use a PhoneNET-to-LocalTalk adaptor
cable available from Farallon division of Netopia. Connect the adaptor cable’s RJ-11 connector to the AppleTalk
cable’s PhoneNet connector. Connect the cable’s mini-DIN-3 connector to your LocalTalk network.
Be sure to observe the standard rules governing maximum cable lengths and limits on the number of nodes on
a PhoneNET network. The dual RJ-11 PhoneNET connector allows insertion in the LocalTalk daisy chain, or at
the end. If the device is connected at the end of the daisy chain, you must install the accompanying terminator.
8
Ethernet
Normal/Uplink
Auxiliary Console Power
4
7
3
6
2
5
1
Telco 2 Telco 1
Phone 1Phone 2
1
Auxiliary connection port
HD-15 (female)