Mastercom 250 hook up order

[BigEd]

Hi guys. Lots of good info out here on the Mastercom 250 once you get up and working. Howerver, I need help getting my 250 system off the ground.
  Can someone give me the dummys guide to hooking up the components?
 I have the main box, I have the display, I have the keypad, and I have the card reader. All of the components (except the main box)  have two "phone jacks" on them. IF I hook the display up (first in the chain), I get it to read "Bally Systems (C) 1996"  If I hook the reader up first then its lights blink all around the card reader.  However if I daisy chain them together, only the first one in the string works. Can anyone tell me the proper hook up order? I appreciate your help very much.

[Foster]

it does not matter, but make sure you have Mastercom interconnect cables and not standard phone cords.

MasterCom looking at the plug with the contacts up:
Black, Red, Green, and Yellow at each end.

A phone cord will have one end the same and other end will be in reverse order.

[BigEd]

it does not matter, but make sure you have Mastercom interconnect cables and not standard phone cords.

MasterCom looking at the plug with the contacts up:
Black, Red, Green, and Yellow at each end.

A phone cord will have one end the same and other end will be in reverse order.

Thanks Foster!!  You were dead on. After a long tedious job of cutting and resplicing  phone cables last night I got both items to power on.    Now I move on to the task of trying to read and reprogram the chip to read a custom message.

Thanks for helping me on that. You nailed it!