Ricoh Type M12 Field Service Manual page 26

1. Installation
10. Reinstall the controller rear cover and controller cover.
11. Make two loops with the telephone cord for each telephone line (LINE2, LINE3), and then
attach the ferrite core [A] to each telephone line for double-SG3 board installation.
12. Connect the telephone cords to the "LINE2" and "LINE3" jacks.
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