PrintrBot model 1310 is pretty old, and the information on it is not easily available on printrbot.com. All of the official documentation on the "legacy" printrbots can be found in this google drive folder. The (copyrighted) assembly manual can be found here.
Login to the ag150 with username "blabs". Cura software GPL AFFERO V1
Using via Command Line
Login remotely with secure shell: "ssh -XC email@example.com". The Arduino terminal can be used to directly talk to the PrintrBot. Serial is set up to be 115200 baud.
M115reports Firmware installed.
FIRMWARE_NAME: Marlin v1; Sprinter/grbl mashup for gen6 FIRMWARE_URL:http://www.mendel-parts.com PROTOCOL_VERSION:1.0 MACHINE_TYPE Mendel EXTRUDER_COUNT:3
M119reports endpoint status.