Uplink 4500CAB

Does anyone know which orientation this cable should be connected to the 12pin header inside the 4500EZ?

The connector is not indexed, and does not indicate which IS PIN1.

Well, there was no white dot or other index, so I decided to wait until Alarm Relay tech support called me to plug in the cable.

It turns out that the Uplink 4500EZ was a DIRECT REPLACEMENT for the old Uplink 2500. All that was required was to give then the serial number from the new 4500EZ.

The technition was very knowledgable, and gave me the correct orientation for the plug, rebooted the system (turn back on), and then tested a burglar alarm and fire alarm.

NO changes to the ELK configuration were needed for then new U4500EZ.

NO changes (DIP switches) to the U4500 configuration were needed "out of the box".

I've attached a picture of the installed unit, showing the correct 4500CAB cable orientation.