AT&T 585-300-903 manual 2296A Modem Autocall Dialer Module, Type 2A4, Disassembling the Modem

DCP Mode 2 Installation and Administration 11-15

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2296A Modem AUTOCALL Dialer Module, Type 2A4

The 2296A requires a dialer module when in a stand-alone modem pool. Follow these instructions before installing the modem.

1.Disassembling the Modem:

a.Make sure power is turned OFF.

b.Disconnect all cords from the modem.

c.Turn the modem upside down and remove the six recessed screws along the edges of the modem.

d.Hold the top and bottom halves of the housing together as you turn the modem right-side up.

e.Gently remove the top half of the housing.

f.Disconnect the ribbon cable that connects the front panel to the right side of the circuit pack (when facing the front of the modem).

g.Remove the front panel by lifting it straight up.

h.Lift the front of the circuit pack about 1 inch, pull the circuit pack forward about 1 inch, and set it down.

2.Inserting the Dialer:

a.At the side of the modem’s circuit pack labeled EXPANSION SLOT A, tilt the circuit pack up from the housing until the slot is visible (1 or 2 inches up).

b.Orient the dialer module with the metal tab toward the rear of the modem circuit pack. Insert the dialer module in EXPANSION SLOT A.

When fully inserted, the hole in the metal tab should be positioned over a threaded hole in the modem’s circuit pack.

c.Move the modem’s circuit pack back to its original position with the connectors at the rear extending through the back of the housing. Make sure the notches cut into the sides of the circuit pack align with the supports in the housing.

d.Fasten the dialer module in place with the screw shipped with the module.

e.Keep a record of which dialer module is installed (AUTOCALL DIALER).

3.Assembling the Modem:

a.Place the front panel back in the housing. Insert the bottom (hinged side) of the panel first, then rotate the front panel back into place.

b.Reconnect the ribbon cable to the connector on the right side of the modem’s circuit pack. Make sure the cable does not get in the way when replacing the top half of the housing and installing the screws.

c.Replace the top half of the housing. Check the front and rear panels to be sure that the housing is positioned correctly.

d.Hold the top and bottom halves of the housing while turning the modem over.

e.Install the six screws and tighten.