Model CA7028,
Wire Mapper Pro®

LAN and Telephone Cable Tester

AEMC® Model CA7028, Cable Fault Mapper®  (Length Tester, Alphanumeric TDR)


  • Indicates all common wiring faults including split pairs, shorts, opens, reversed pairs and crossed wires
  • Unique graphical and digital display of fault information and length
  • Indicates distances to opens and shorts and identifies locations
  • Built-in tone generator for tracing and locating cables
  • Built-in service check function to detect telephone, 10BaseT, 100Mbit+ and token ring
  • Visual and audible warning of live telephone network voltage
  • Works with all Category 6 cables
  • Large high-visibility blue electrolumiscent backlit display
  • Active remote identifiers indicate Pass/Fail at remote end
  • Up to 16 unique remote identifiers available
  • Works with TIA 568A/B, USOC and ISDN wiring schemes


  • Identify LAN wiring faults
  • Find distances (feet or meters)
    to opens and shorts
  • Test patch cords
  • Test for active service
  • Trace cable locations
  • Measure cable length
  • Map network layout
Product Description:
The Wire Mapper Pro® Model CA7028
is a hand-held structured cable mapping
and troubleshooting tester designed
for use on UTP, STP, FTP and SSTP
cabling equipped with RJ-45 connectors
and wired to either TIA 568A/B (ISO
11801 and EN 50137), USOC or ISDN
specifications. It detects open circuit
pairs, shorts, crossed wires, crossed
pairs, reversed pairs, split pairs and
shield faults.In the event of opens and shorts, the
Model CA7028 uses TDR technology
to indicate if the fault is at the near
end or the remote end of the cable,
or if it is somewhere in between. It will
then indicate the distance to the fault.
The Model CA7028 has the ability to
measure and indicate the length of the
cable under test, using a Vp (Velocity
of Propagation) set by the user, from
a built-in library or manually. It will
measure and report the length of all
four pairs of wires in the cable under
test. It also generates an audible tone
that is transmitted into all four pairs on
the cable under test. This can be used
for cable tracing and identification in
conjunction with a tone receiver.

The Model CA7028 also has the ability
to identify telephone and data lines.
If the main unit is plugged into an
operational RJ-45 socket, it will give a
continuous warning tone and display if
a telephone voltage is present on any
of the pins. If the Service Detect key
is pressed, it will check and display
telephone, 10BaseT, 100Mbit+ and
token ring active service.

***The Model CA7028 incorporates an
oscillating tone generator that is
detectable with a standard tone receiver,
for use in the tracing and identification
of cables.

500 ft (150m)
Cable Types
Faults Indicated
Short Circuit Pair, Open Circuit Wire, Short Between Pairs,
Split/Cross Pairs, Pair Reversals, Shield Continuity
Fault Location
Near end, remote end or distance to fault
Wiring Schemes
Service Indication
Telephone, 10BaseT, 100Mbit+, Token Ring
Inhibit Inhibits testing in the presence of live voltages
Tone Generator
Oscillating 810 to 1110Hz
Voltage Warning
Audible and visual warning of TNV (Telecom Network Voltage) presence
Display Resolution
128 x 64 pixel graphical LCD
Display Backlight
Blue electroluminescent
Fault Display
All fault and setting info displayed textually and graphically
Remote Display
Green/Red Pass/Fail LED
Power Source
4 x 1.5V AA Alkaline batteries
After 3 minutes
English, French, German, Spanish, Portuguese, Italian
Battery Life
Standby mode >4000 hrsContinuous testing >7.5 hrs

Storage Temperature
-4° to 158°F (0° to 70°C); 5 to 95% RH non-condensing
Operating Temperature
32° to 112°F (0° to 40°C); 5 to 95% RH non-condensing
6000 ft (2000m) max
6.5 x 3.5 x 1.5″ (165 x 90 x 37mm)
12 oz (350g)
Index of Protection
Safety Ratings
EN 61010-1, EN 61326-1, EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-6
CE Mark
pdf_pic Downloads: Specifications
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