Specifications

4-8 Courier V.Everything External Modem: Getting Started
7
Remove the modem (printed circuit board), carefully easing
the voice/data switch out of its opening in the front panel.
8
Locate jumpers J4 and J6.
J4
J6
MI/MIC Jumpers
Figure 4-1. Location of the MI/MIC Jumpers.
9
Set the jumpers as shown:
J4
J6
From
J4
J6
To
10
Replace the modem and reconnect the cables.
CAUTION: When you power on the modem there will
be potentially hazardous voltage, particularly near the
phone jacks. Do not touch the board when the power is
on.
11
Power on the modem. Check to see that the Off Hook (OH)
status light goes on. If you dialed a number, listen for an
answer tone from the remote modem.
Then drop the DTR signal. The modem should go on hook
and the OH status light should go off.