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3.3 HINET CONNECTORS
HiNet uses sub-miniature nine-pin '0' connectors to link cables to machines and to each other. Each machine is equipped with a female socket, and both male and female
connectors can be attached to the HiNet cable.
There are two connector styles--a 'Squeeze-on' (Insulation Displacement) style for attaching anywhere along the length of flat ribbon cable, and a 'Solder-on' style for attaching to the ends of round Belden cable. Both styles come with either male or female connectors.
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DMS-3/501 VOLUME 1 3 • 3 SQUEEZE-ON CONNECTORS
SQUEEZE-ON (INSULATION DISPLACEMENT) CONNECTORS Squeeze-on (or Insulation Displacement)
connectors may be placed anywhere along the length of a Ribbon Cable, and a length of cable may have many such connectors attached to it. By stringing Squeeze-on connectors along a Ribbon Cable, many workstations can be plugged into a single unbroken cable.
As you can see from diagram A below, there are three main parts to a Squeeze-on connector:
1- The MAIN SFX:TION which contains the pins (male) or socket holes (female) at one end, and the gold-plated TEETH at the other end.
2- The SQUEEZE PLATE which is used to push the cable down .ontothe teeth.
3- The STRAIN RELIEF which then clamps over the Squeeze Plate and doubled-back cable.
---NOTE---Squeeze-on connectors are shipped with the three main parts already assembled. To use them you will first have to gently take the connector apart.
DMS-3/501 VOLUME 1 3.3 SQUEEZE-0N CONNECTORS
MALE AND FEMALE CONNECTORS
I DIAGRAM A
EXPLODED VIEW OF SQUEEZE·ON CONNECTOR
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DMS-3/501 VOLUt-1E 1 3.3 SQUEEZE-ON CONNECTORS
Attaching a Squeeze-on connector.
1- Find the spot on the cable where you wish to place the connector. Place the cable over the teeth so that the cable's red line, which indicates conductor #1 in the cable, is on the same side of the connector as the
connector's small black arrow which indicates pin #1 on the connector. See Diagram B on the next page.
2- As you can see, there are three slots on each side of the connector's main section, two near the teeth and a lower one near the tie-holes. The Squeeze Plate has small plastic flanges which fit into the slots. Place the Squeeze Plate against the cable (the angled side of the Squeeze Plate's flanges facing the cable) and push the plate down with your fingers so that the cable presses against the teeth. Press down until the flanges snap into the top main section slot. See Diagram B.
---NOTE---Make sure that the cable is square to the
connector and that the cable strands line up properly with the teeth. One of the most common errors in cable assembly is shorting together conductors by incorrectly positioning the cable before pressing down on the Squeeze Plate.
DMS-3/501 VOLUME 1 3. 3 SQUEEZE-ON CONNOCTORS
DIAGRAM B
CONNECTOR WITH CABLE SQUEEZED ON
3- If you have a crimping tool (a device for squeezing together the Squeeze Plate and the main section) use it to push the plate down harder on the cable until the flanges snap into the next (second) slot.
If you do not have a crimping tool you can use Channel Lock type pliers to squeeze together the plate and the main section until the flanges snap into the second slot. However, if using Channel Lock pliers you must protect the main
section pins or socket holes from being bent or scored by the Channel Lock's teeth. This is done by plugging another connector (with strain reliever attached) into the pins or holes of the connector you are working on so that both plier
jaws can push against the backs of the two connectors. Never let the jaws of ~ pliers push against the holes or pins. (There is a plastic
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DMS-3/501 VOLUME 1 3.3 SQUEEZE-ON CONNECTORS
hood protecting the pins, but this hood is not adequattr defense against Channel Lock pliers.)
4- Once the Squeeze Plate flanges are snug in the second slot, and the sides of the main section are not bowed out, the teeth have penetrated completely through the cable and it is time to attach the strain reliever. Before attaching the strain relief double the cable back over the plate. There are flanges at the ends of the strain reliever's legs that fit into the third (bottom) main section slots. With the cable doubled back over the Squeeze Plate, as shown in Diagram C, push down the strain reliever until the leg flanges snap into the lower slots. The connector is now ready to use.
DIAGRAM C
COMPLETED CONN ECTION
DMS-3/501 VOLUME 1 3.3 SQUEEZE-ON CONNEC'roRS
End of Cable Connector
I f the Squeeze-on connector is at the end of the cable (to be used to connect the cable to another cable or to a terminator), cut off any excess cable that sticks out past the connector after the cable has been doubled over and clamped down with the Strain Relief (see diagram A).
Connector Tie Holes
As you can see, there are two tie holes in the main section near the third slot. When two cables are connected together these tie holes are used to prevent strain on the Gable from pulling the connectors apart. By poking plastic tie wraps through the two sets of holes on either side of the male and female connectors and then tightening the plastic ties, the two connectors can be prevented from pulling apart.
4-40 x 1/2" bolts and nuts may also be used~