ADTRAN 3000 - Manual (Page 36)

Chapter 2. Setting Up the Express 3000
2-8 Express 3000 User Manual 61203153L2-20
Rear Panel
The Express 3000 Rear Panel contains all of the interfaces used in con-
necting your unit and two DIP switches that set the DTE rate and reset
your unit (see Figure 2-2). Please read carefully the section Setting the
DIP Switches on page 2-9. Appendix D describes the pinouts for these
interfaces.
Figure 2-2. Express 3000 Rear Panel
Table 2-1. Express 3000 LED Descriptions
LED Color Description
TD Green Transmit Data (TxD).
RD Green Received Data (RxD).
1 or 2 Slow Green Flash Attempting SPID registration.
Fast Green Flash Attempting TEI registration.
Solid Green POTS 1 or 2 in use.
Off Ready. No data traffic.
Solid Amber B channel 1 or 2 passing data.
Amber Flash Remote test originate.
PWR/LINE Solid Green Link established. Calls can be placed.
Off No power.
Flashing Link is not established. Calls cannot
be placed.
OFF
MODEM EIA232 PWR ISDN 2 1
1 2
ON
12VDC
EIA-232 Port
Power Supply
Connector
Modem
Interface
DIP
Switches
POTS
Port 1
POTS
Port 2 ISDN
Interface