Disassemble the five-pin DIN connectors. To do this, slide the plastic cover off the metal guide of one connector. Separate the two metal halves to release the five-pin DIN connector plate. Repeat this process with the second DIN connector.
Determine the length of dual-conductor cable you require. Fifty feet is the specified maximum length in order to reduce signal degradation. Use wire cutters to cut the cable.
Prepare the cable. Use cable strippers to strip 3/4 inch of outer casing from both ends of the cable to expose the internal wires. Strip 1/8 inch of casing from the internal wires at each end of the cable, and twist the ends of each wire. Then pull back the shields from each end and twist these in the same manner.
Slide a plastic DIN cover onto each end of the main cable. The covers’ larger openings should face the exposed wires at either end.
Solder the cable's shields. Hold a DIN connector plate, and carefully slide one end of the cable's shield into pin No. 2’s receptacle. Warm this with a soldering iron, and use a small amount of solder to seal the joint. Repeat this process with the other DIN connector plate at the other end of the cable.
Solder wires into place. Insert the lighter-colored wire from one end of the cable into pin No. 4’s receptacle and solder it in. Then solder the darker-colored wire into pin No. 5 in the same way. Repeat this process for the other end of the cable so that both ends are wired in exactly the same way. Note that pins No. 1 and 3 are not used.
Place small strips of electrical tape around each connection. This will prevent short-circuiting.
Reassemble the DIN connectors. Fit the two metal halves around the first five-pin connector plate and, using long-nosed pliers, crimp the end farthest from the pins securely to the cable. Hold the metal connector, and slide the plastic cover over it until it locks into place. Repeat this with the second DIN connector to finish the other end of the cable.