Nortel Meridian 1 Manual page 17

Procedure 2
Installing the M2250 attendant console top cover
1 Set the QMT2 dip switch. To locate the dip switch, look at the attendant
console from the top. The QMT2 dip switch is the only dip switch on
the topmost circuit board. Set the switch to ON (enable QMT2) or OFF
(disable QMT2).
Note: The QMT2 feature must be enabled in system software. Refer
to LD 12 in the Software Input/Output Guide Administration
(553-3001-311).
2 Carefully lift the top cover straight up and connect the 20-pin plug
ribbon cable to J2.
3 Put the top cover back on the attendant console:
• Place the top cover onto the base housing, and turn the
attendant console upside down.
• Reinsert and tighten the ten 10-mm fastening screws on the
flange.
• Reinsert and tighten one 10-mm and one 40-mm fastening
screw on the back.
4 Return the attendant console to its working position, reconnect the
plugs and cords, and test the features.
Procedure 3
Loopback test on the M2250 attendant console
1 Make a loopback connector. Prepare a blank 25-way RS-232 plug by
internally connecting pins 2 and 3 together with strapping wire.
2 Press the Shift key. This accesses Level 1 mode.
3 Press the F4 Function key to access the Diagnostics menu on the
liquid crystal display (LCD) screen.
4 Plug the loopback connector into the Data Port RS-232 jack in the back
of the console.
Attendant console
Telephone and Attendant Console Installation
Page 13 of 144