Product and Specification

GAJ Technology's wireline and cable simulators, reproduce the characteristics of each pairs of CATx or xDSL wires, of various lengths, including insertion loss, return loss and impedance, based on international standards such as ANSI/TIA-568 (Commercial Building Telecommunications Cabling Standards) and ISO/IEC 11801 (Generic cabling for customer premises).

These are the perfect tools for quickly and inexpensively testing modems, DSLAMs, network cards or any device that uses CATx or xDSL cable and can provide proof of compliance for telecommunication equipment.

Our small "match box sized" simulators can be quickly daisy chained to simulate incremental lengths of CATx twisted pair cable.

GAJ Technology's ruggedly designed simulators are warranted against defects in workmanship. Warranty Details

CAT5/5e & CAT6 Cable Simulators

Standard CAT5/5e and CAT6

GAJ Technology's wireline simulator reproduce the characteristics of 4 pairs (8‑wire) of CAT5/5e or CAT6 network cable with an RJ‑45 connector at each end. The simulator can test any devices that use network cables such as routers, DSLAM, etc.

The pins of the RJ‑45 are connected according to the Ethernet 568A or 568B standards as shown in the figure at the left.

GAJ Technology's wireline simulators are available as:

  1 wireline module
     1 3/8" x 1 3/8" x 3.5"
     35mm x 35mm x 90mm

  1 wireline module shielded
     1 3/8" x 1 3/8" x 3.5"
     35mm x 35mm x 90mm

  1 wireline module PCB Mount
     1 3/8" x 1 3/8" x 3.5"
     35mm x 35mm x 90mm

  12 wirelines rack mount case
     19" x 1.75" x 3.5"
     480mm x 45mm x 90mm
     12 ports at the front, 12 at the back

  12 wirelines rack mount case shielded
     19" x 1.75" x 3.5"
     480mm x 45mm x 90mm
     12 ports at the front, 12 at the back

  24 wirelines rack mount case (CAT5/5e only)
     19" x 1.75" x 8"
     480mm x 45mm x 200mm
     all 48 ports at the front (8 wirelines PCB available)

The following gauges and lengths are available, please contact us for other models.

CAT 5/5e:	10m, 20m, 40m, 80m, 100m and 125m
CAT 6:	10m, 20m, 40m, 80m and 100m
PCB Version:	60m, 100m and 120m

A shielded version is also available with a continuous shield connection through the RJ-45.

See below for the response curves of CAT5/5e or CAT6.

Buy Now Module or Rack Mount Case or PCB Mount

PoE CAT5/5e & CAT6 Cable Simulators

PoE CAT5/5e and CAT6

The pins of the RJ‑45 are connected according to the Ethernet 568A or 568B standards as shown in the figure at the left.

The PoE model complies with the IEEE 802.3af type 1, and can sustain 45mA per wire and 50V between each wire of a pair. Each pair is completely independent, so up to 180mA could be supplied to a powered device. For more details, please check our FAQ

GAJ Technology's wireline simulators are available as:

  1 wireline module
     1 3/8" x 1 3/8" x 3.5"
     35mm x 35mm x 90mm

  12 wirelines rack mount case
     19" x 1.75" x 3.5"
     480mm x 45mm x 90mm
     12 ports at the front, 12 at the back

The following gauges and lengths are available, please contact us for other models.

CAT 5/5e:	10m, 20m, 40m, 80m and 100m
CAT 6:	10m, 20m, 40m, 80m and 100m

A shielded version is also available with a continuous shield connection through the RJ-45.

See below for the response curves of CAT5/5e or CAT6.

Buy Now Module or Rack Mount Case

KITS

5 Module Kit

GAJ Technology's modules can be added together to simulate various lengths of cable. The 5 Module Kit includes 10m, 20m, 40m, 80m and 100 metre modules, and 4 patch cords. The kit can simulate 25 different lengths, from 10m to 250m, in the following gauges and lengths:

CAT 5/5e:	10, 20, 40, 80 and 100m
CAT 6:	10, 20, 40, 80 and 100m

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Lengths [m]:

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10m Module

20m Module

40m Module

80m Module

100m Module

4 Module Kit

GAJ Technology's modules can be added together to simulate various lengths of cable. The 4 Module Kit includes 10m, 20m, 40m and 80 metre modules, and 3 patch cords. The kit can simulate 15 different lengths, from 10m to 150m, in the following gauges and lengths:

CAT 5/5e:	10, 20, 40, and 80m
CAT 6:	10, 20, 40, and 80m

Buy Now

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Loop Back

CAT 5/5e Simulator - 8‑wire with RJ‑45 Connectors

Loop back module with RJ‑45

GAJ Technology's 8‑wire Loop back simulator can test the transmit and receive circuits of a single router.

The pins of the RJ‑45 are connected according to Ethernet 568A or 568B standards as shown in the figure at the left.

Pinout: 1 ‑ 3 / 2 ‑ 6 / 4 ‑ 7 & 5 ‑ 8.

GAJ Technology's loop back simulator is available as a module with the following dimensions.

  1 wireline module
     1 3/8" x 1 3/8" x 3.5"
     35mm x 35mm x 90mm

The following gauges and lengths are available, please contact us for other models.

CAT 5/5e:	10m, 20m, 40m, 80m and 100m
CAT 6:	10m, 20m, 40m, 80m and 100m

See below for the response curves of CAT5/5e or CAT6

A Y-Cable is also available to connect the loop back module to two devices on pair 1 and 4, for other configuarion please contact us.

Buy Now

xDSL

Single Pair & Bounded Pair xDSL with RJ‑45

GAJ Technology's wireline simulator reproduce the characteristics of one pair (2‑wire) or two pairs (4‑wire) of 20 AWG, 24 AWG or 26 AWG cable. The RJ‑45 jacks at each ends can be used with either RJ‑11 or RJ‑45 plugs. The 2 or 4 wires simulator are connected as shown in the figure at the left.

GAJ Technology's wireline simulators supports any communication protocol, such as the VDSL Standard ITU G.993.1, which offers speeds of up to 52 Mbit/s downstream and 16 Mbit/s upstream, over a single flat untwisted or twisted pair of copper wires using the frequency band from 25 kHz to 12 MHz. The wireline simulator complies with ETSI/STC TM6(97)02, 970p02r3 cable reference models for simulating metallic access networks.

GAJ Technology's wireline simulators are available as:

  1 wireline module
     1 3/8" x 1 3/8" x 3.5"
     35mm x 35mm x 90mm

  16 wirelines rack mount case
     19" x 1.75" x 3.5"
     480mm x 45mm x 90mm
     16 ports at the front, 16 at the back

Available as an individual module or 16 wirelines rack mount case, with the following lenghts, please contact us for other gauges and lengths.

20AWG:	200m, 500m, 1km, 2km and 4km
24AWG:	1km
26AWG:	2000ft and 3000ft

See below for the response curves.

A Y-Cable is also available to connect the RJ-45 connector of the module to two devices using RJ-11, for other configuarion please contact us.

Buy now a Module or a Rack Mount Case

Attenuator

GAJ Technology's attenuator reproduce the characteristics of a 2 wire phone line with an impedance of 600 ohm and an insertion loss (attenuation) of 9dB. The RJ‑45 jacks at each ends can be used with either an RJ‑11 or an RJ‑45 plugs. The attenuator is ideal for testing phone systems, DTMF signal, etc.

The 2 wires simulator is connected as shown in the figure at the left. Please contact us for other attenuation & impedance.

GAJ Technology's attenuator is available as a module, with the following dimensions:

1 3/8" x 1 3/8" x 3.5"
35mm x 35mm x 90mm


Electrical Specifications

Click on any of the Graphs to get a larger View. The graphs assume a source impedance of 100 ohms. Connecting a device with a different impedance will affect the curve, as is the case with actual cable.
Insertion Loss The insertion loss, also called attenuation, is the amount of signal loss by the insertion of the cable between the signal's source and the device under test. Doubling the length results in about twice the insertion loss.	Return Loss The return loss is the signal returned by the cable due to the impedance mismatch between the cable and the ideal 100 ohm impedance, which interferes with the desired signal from the remote end. This characteristic of real cable is simulated by GAJ Technology's simulators.	Impedance The simulation includes both the real and imaginary part of the impedance.
Red curve: Simulated Blue Curve: Theoretical	Red curve: Simulated Blue Curve: Theoretical CAT5e/6 Green curve: Theoretical CAT5	Red curve: Simulated magnitude Blue Curve: Simulated imaginary part Green curve: Simulated real part

CAT 5/5e - 10m, 20m, 40m, 80m, 100m and 125m
10m - CAT 5/5e Insertion Loss	10m - CAT 5/5e Return Loss	10m - CAT 5/5e Impedance
20m - CAT 5/5e Insertion Loss	20m - CAT 5/5e Return Loss	20m - CAT 5/5e Impedance
40m - CAT 5/5e Insertion Loss	40m - CAT 5/5e Return Loss	40m - CAT 5/5e Impedance
80m - CAT 5/5e Insertion Loss	80m - CAT 5/5e Return Loss	80m - CAT 5/5e Impedance
100m - CAT 5/5e Insertion Loss	100m - CAT 5/5e Return Loss	100m - CAT 5/5e Impedance
125m - CAT 5/5e Insertion Loss	125m - CAT 5/5e Return Loss	125m - CAT 5/5e Impedance

CAT 6 - 10m, 20m, 40m, 80m and 100m
10m - CAT 6 Insertion Loss	10m - CAT 6 Return Loss	10m - CAT 6 Impedance
20m - CAT 6 Insertion Loss	20m - CAT 6 Return Loss	20m - CAT 6 Impedance
40m - CAT 6 Insertion Loss	40m - CAT 6 Return Loss	40m - CAT 6 Impedance
80m - CAT 6 Insertion Loss	80m - CAT 6 Return Loss	80m - CAT 6 Impedance
100m - CAT 6 Insertion Loss	100m - CAT 6 Return Loss	100m - CAT 6 Impedance
100m-1dB - CAT 6 Insertion Loss	100m-1dB - CAT 6 Return Loss	100m-1dB - CAT 6 Impedance

3000ft - xDSL 26AWG
Insertion Loss	Return Loss	Impedance