Cisco 1760 - VPN Bundle Router Hardware Installation Manual page 41

Chapter 1 Cisco 1760 Router Overview
Table 1-7 Additional Required Equipment (continued)
Equipment
Serial cable
NT1
Asynchronous modem
78-13342-03
When You Use It
This cable connects a serial card to serial services. You must order
this cable from Cisco. For detailed information about serial cable
types, refer to the Cisco WAN Interface Cards Hardware
Installation Guide that comes with every card.
Some ISDN service providers require a Network Termination 1
(NT1) device to connect an ISDN S/T port to the ISDN line.
To configure the router from a remote location, connect a modem to
the AUX port on the router.
Cisco 1760 Modular Access Router Hardware Installation Guide
Additional Required Equipment
1-13