Cortelco 2750 - Manual (Page 12)

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1.3.4 Phone Installation
1.3.4.1 Desk Mount
a. Connect the power adapter to the jack on the bottom of the phone. Plug the adapter into a wall
outlet which is not controlled by a wall switch. Use only a 9V DC 500mA, Class 2 adapter.
b. Connect the line cords. If you have RJ14 line jacks, you need only connect 4 wire line cords
between the wall jacks and the jacks in the base of the 2750. If you have RJ11 line jacks, you
will need 2 line couplers as discussed in Section 1.3.2. Note that the jacks on the 2750 are
numbered L1/L2 and L3/L4. Connect your incoming lines accordingly.
c. Select the desired viewing angle and install the desk stand. The desk stand can be installed in
two positions to give a choice of viewing angle.
d. Plug the coiled cord into the handset jack, and plug the other end of the cord into the base.
e. Place the handset on the base.
1.3.4.2 Wall Mount
a. Remove the desk stand. The unit will then mount directly on a standard wall telephone jack.
b. Connect the power adapter and the line cords. See Steps “a” and “b” above. Use the included
short line cord to connect to the mounting jack. Use one of the included long line cords to
connect to the other jack.
c. Mount telephone to wall jack (RJ-11W).
d. Plug the coiled cord into the handset, and then plug the other end of the cord into the base.
e. Rotate the handset hook into the wall mount position and place the handset on the base.
1.3.4.3 Install Batteries (Optional)
The 2750 uses AC power from a standard wall outlet. As long as the telephone is connected to a wall
outlet, it will operate using the AC power. Please remember to plug your telephone into a wall outlet
that is not controlled by a wall switch. The 2750 uses 3 AAA batteries for backup power. These
batteries fit into a compartment on the base of the telephone.
The display has a battery symbol whenever the batteries are low and need replacing or when no
batteries are installed.