NETGEAR XM128 ISDN Reference Manual page 27

Table 1-3 describes the components on the rear panel of the Model XM128 modem.
Table 1-3. Rear panel components
Label Description
ON/OFF This switch turns power on or off.
POWER This is the power receptacle for the power adapter.
RS-232 This RS-232 COM port is for connecting the Model XM128 modem to the serial port
of a computer or data terminal.
ISDN This port is for connecting the RJ-45 connector of an ISDN line.
PHONE 1 This port is for connecting the RJ-11 connector of an analog device (telephone, fax,
or analog modem).
PHONE 2 This port is for connecting the RJ-11 connector of an analog device (telephone, fax,
or analog modem).
Introduction
Reference Guide for the Model XM128 ISDN Digital Modem
1-7