Encoder wiring question.

Hello All,

(I have searched the FAQ area before asking this question.)

I am turning the path from steppers to DC servos. Right now I am
experimenting with simple testing. I have purchased a GeckoDrive 340
and a used DC motor (2.5" dia X 5.0" w/.375 shaft) with an encoder
attached. My question is the encoder did not have pinout
information. There are 10 pins on it. I have determined the +5VDC
and ground pins from the IC's on the circuit. How do I find the
Phase A and Phase B pins and the Quad resolution of the encoder?
Have not applied power to anything yet.

TIA,

Wayne