Nortel M3110 Installation Manual page 390

Page 390 of 504
553-3001-367 Standard 3.00
Appendix C: Meridian Modular Telephones add-on modules installation
7 If the NTZK or the NT2K (with date code prior to April 24, 1998) phone set
is equipped with a Power Option board and/or cable, the Power Option
board and/or cable must be removed before installing the MCA.
• Remove the two small screws from the Power board (near the top)
and set them aside.
• To disconnect the Power Option board from the NTZK telephone,
grasp the board firmly on each side and slowly rock the board while
applying upward pressure, until it is released from the 2X7 pin
connector.
• To disconnect the NT2K Power Option board from the set, simply
remove the screws from the base and lift the board out of the set.
• If the Power Option board has a ribbon cable disconnect the cable
from the 2X7 pin connector on the main board and remove the cable.
8 If the phone is equipped with the External Alerter board, it must be
removed before installing the MCA with redesigned footstand.
• The External Alerter board is located at the right center of the
telephone.
• Remove the screws form the board, grasp the board firmly on each
end and pull upward to remove it from the 2X3 pin connector.
9 Install the Jumper board onto the 2X7 pin connector inside the phone
base.
• If the phone set did not have a Power Option board installed on the
NT2K or the NTZK then there will be 2 Jumper plugs on the 2X7
connector. Remove them before installing the Jumper board.
• The redesigned footstand will have 2 jumpers. Use the black one for
the NT2K phone and the brown one for the NTZK phone.
10 Remove the large MCA knockout section in the rear of the telephone
footstand assembly, and remove the small tabs. See Figure 70. It is best
to remove this knockout with a screwdriver.
11 For MCA, set option plugs to the required configuration, RS-232 or V.35.
The factory default is RS-232.
August 2005