The IDEAL Electrical 33-856 VDV Multimedia Voice, Data, and Video Wiremapper and Tester is an LCD based all-in-one tester for verifying proper wiring of low-voltage and data communications cables. The primary function of the 33-856 VDV is wiremap test. The wiremap test visually shows, pin by pin, whether a cable is terminated properly at both ends, and if there is end-to-end continuity. The VDV can test Data/Ethernet RJ-45 (8P8C), Voice/Phone RJ-11/12(6P6C/6P4C), and Video/coax cables. The LCD visually displays either "PASS" or "ERROR" after each test, in order to verify if the cable is terminated correctly.

In Data mode, the RJ-45 port tests RJ-45 connector cables terminated to Cat 3/5/5e/6/6a twisted pair cables. When the test is activated, VDV checks each conductor of the cable for any opens (terminated, or cut conductors); shorts (cut or nicked conductors that come into contact); miswires (wires out of order, or inconsistent at both ends); reversals; and split pairs (wired correctly, but using the wrong conductor order and grouping). VDV can accurately identify and alert the user to uplink/crossover cables.

For all tests, the included main remote (Remote #1) is used to terminate the far end of the cable run. The main remote is stored in the base of the tester when not in use.

The IDEAL Electrical 33856 VDV has a built-in analog tone generator is also included and can be used in all testing modes. The tone generator has 4 user selectable tones. Toning helps to locate and identify a single cable that is within a bundle of cables. The tone generator has the ability to tone by pin, by pair, or all of the conductors at once. This allows the user to more precisely locate errors within the cable, such as finding opens.