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Installing the D-Shell HHM Connector
Follow the instructions below if you are installing the supplied
1.Using the mounting plate as a template, cut an opening in the panel for the mating connector. Also drill two holes for the mounting hardware.
2.Attach the mounting plate and mating connector to the panel using the mounting hardware supplied.
3.Secure the two ends* of the serial bus cable to the back of the panel using strain relief brackets.
4.Strip the ends of the wires. Twist the two Serial 1 wires together and attach them to pin 5 of the connector. Twist the Serial 2 wires together and attach them to pin 9. Similarly, attach the Shield wire(s)* to pin 4.
The following illustration shows connections for incoming and outgoing serial bus cable. As with other devices, the HHM connector may be at either end of its bus. If it is, there will only be one bus cable attached.
Bus Strain Bus
Cable Reliefs Cable
Shield 
(Pin 4)
SER 2 
(Pin 9)
SER 1 | Crimp | |
(Pin 5) | ||
(Qty. 3) | ||
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Mounting
Mating Mounting
Connector Plate
MountingSurface
(rear view)
a42240c
Monitor
Connector
When making bus connections, the maximum exposed length of bare wires should be two inches. For added protection, each shield drain wire should be insulated with spaghetti tubing to prevent the Shield In and Shield Out wires from touching each other.
*If the HHM connector is at either end of its bus, it is necessary to install an appropriate terminating resistor across the Serial 1 and Serial 2 wires. The Genius I/O System and Communications User's Manual lists appropriate terminating resistors for each recommended bus cable type.