Ricoh Type M12 Field Service Manual page 27

13. Hold the telephone lines with the clamps [A] as shown below.
14. Connect the power plug to a power outlet and turn on the main power switch.
15. Enter the service mode. Set bit 1 of communication switch 16 to "1" (SP1-104-023).
16. Set bit 3 of communication switch 16 to "1" (SP1-104-023).
17. Exit the service mode.
18. Turn the main power switch off and on.
19. Print out the system parameter list. Then check that "G3" shows as an option.
20. Set up and program the items required for PSTN-2 communications.
G3 Interface Unit Type M12
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