Multitech MultiVOIP 400 MVP400 User manual

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4-Channel Voice/Fax Product Update
Part Number: 82087 00
5/28/
Introduction
This product update provides the information necessary to perform a 4-channel voice/fax field upgrade to your
MultiVOIP. For example, a MultiVOIP MVP400 can be upgraded to an MVP800 by following the installation
instructionsprovidedbelow.
Installation
To install the 4-Channel Voice/Faxupgradekit:
1. Check the contents of your upgrade kit to insure that it contains the parts listed below:
• 4-ChannelVoice/Fax logicboard
• Phillips screws (6)
• 4-ChannelVoice/FaxProduct Update
2. Turn the power switch to OFF and unplug the power cord from the wall outlet.
3. Turntheunit up-side-down and remove theeightscrews (four on the bottomand four on the rear)
securing the cover to the chassis.
4. Slide the cover towards the back and off the chassis. Set aside.
Mounting
Screws (4)
Cover Rear Mounting
Screws (4)
Figure1: Removing the Cover
5. Remove the three screws and the Voice/Fax Cover which covers expansion slots 5 to 8 (CHANNEL5
to 8) on the back panel of the unit (Refer to Figure 2). Discard the cover plate and the screws.
Mounting Screws (3)
Logic Board Standoffs
(3 in front and 3 in back)
Mother Board
4-Channel oice/Fax Board oice/Fax Cover
Four-Position
Dip Switch
Figure 2: Back View with Cover Removed

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6. Connecttheribbon cable from the existing 4-channelboardto the 50-pin connector on the4-Channel
Voice/Fax logicboard.
7. Place the 4-Channel Voice/Fax logic board in the CHANNEL 5 through 8 slots in the back panel of the
unit and onto the six metal standoffs (Refer to Figure 3).
8. Secure the 4-Channel Voice/Fax logic board to the metal standoffs using the 6 screws provided in the
kit.
Logic Board Standoffs
(3 in front and 3 in back)
Screws
(3 in front and 3 in back)
Ribbon
Cable
Expansion Slots (12)
4-Channel oice/Fax Board
Four-Position
Dip Switch
Figure3:Addingthe4-ChannelVoice/FaxBoard
9. Set switch 1 of the four-position dip switch to the up (open) position on the new 4-Channel Voice/Fax
logic board.All four dip switches must be in the down (closed) position on the existing Voice/Fax logic
board.
10. Slide the cover back on to the chassis and reinstall the cover screws.
11. RefertoyourUser'sGuidetoconfigureyour4-Channel Voice/Faxlogicboard.