The OfficeConnect Gateway Voice Expansion Unit contains eight POTS voice ports (POTS ­ Plain Old Telephone System) that can be set up and configured to work with all versions of the OfficeConnect Gateway. When connected to a Data version of the OfficeConnect Gateway, it provides support for 8 simultaneous POTS calls. When connected to a Data and Voice version, it increases support to 12 simultaneous POTS calls. Package Contents Unpack the contents of your package, and ensure that it contained the following items: · AC/DC, 18 watt Power Adapter and Power Cord · One Expansion Cable, RJ-45 (CAT-5), 18 inches, Green · One RJ-11, 7-ft telephone cable, Silver · Rubber feet · Stacking clip 1 Installation When installing your OfficeConnect Gateway Voice Expansion Unit, make sure of the following: · Unit is out of direct sunlight and away from sources of heat. · Cabling is away from power lines, fluorescent lighting fixtures, and sources of electrical noise such as radios, transmitters and amplifiers. · Water or moisture cannot enter the case of the unit. · Air flow around the unit and through the vents in the side of the case is not restricted. A minimum of 1 in. 54 cm ) clearance is recommended. For desktop use, the four self-adhesive rubber feet help to stabilize your unit and prevent sliding. Attach the feet to the marked areas at each corner of the underside of your unit. In addition, the stacking clip provided may be used for stacking the OfficeConnect Gateway Voice Expansion Unit with your OfficeConnect Gateway, as well as other OfficeConnect products. You can stack up to a maximum of four units...