Leds, Leds -2, Table 2-1 – NETGEAR XM128U User Manual
Page 14: Led descriptions -2
Getting Started Using FirstGear for the Model XM128U ISDN Digital Modem
2-2
Physical Description
LEDs
LEDs on the front panel of the Model XM128U modem allow you to monitor and diagnose the
device.
describes each LED.
Table 2-1.
LED descriptions
Label
Color
Activity
Description
PWR
(Power)
Green
On
Power is supplied to the modem.
ISDN LEDs:
D
Green
On
The ISDN link on the D channel is active.
Blinking
The Model XM128U modem is attempting to make a connection
to the switch.
B1
Green
On
A connection is established to the B1 channel.
B2
Green
On
A connection is established to the B2 channel.
AA
Green
On
The Model XM128U modem is in the automatic answering mode.
Blinking
An incoming call is ringing.
CP
Green
On
Compression is active on either of the B channels.
RS-232
COM LEDs:
DTR
Green
On
The data terminal or computer connected to the DTE port on
the Model XM128U modem is ready to communicate.
DSR
Green
On
The Model XM128U modem is ready to communicate with the
connected data terminal or computer.
RTS
Green
On
The data terminal or computer connected to the DTE port on
the Model XM128U modem is ready to transmit data.
CTS
Green
On
The Model XM128U modem is ready to accept data from the
connected data terminal or computer.
TD
Green
On
The data terminal or computer connected to the Model XM128U
modem is transmitting data to the modem.
RD
Green
On
The data terminal or computer connected to the Model XM128U
modem is receiving data from the DTE port of the modem.
PHONE 1
Green
On
The telephone connected to the port is in use.
PHONE 2
Green
On
The telephone connected to the port is in use.
Xm128u_bk.fm Page 2 Wednesday, February 4, 1998 4:32 PM