Yes all 4 of them are showing up on DVR. DVR will except generic test prints from a laptop on all 4 rj45 adaptors at register locations. Its a problem with interface at pole dislay. I dont understand it is so simple. Ground and signal I checked the pinout on the pole display db9 and even configured my connector to match with pins 7,8 and pins 1,4,6 tied together just like the pole dislay. Scratching my head.