2.2
PPU versions
Front of the PPU 290.4
①
USB interface
②
X127 Ethernet interface (service connection)
③
Qwerty keyboard
④
Keys to quickly select the operating area
⑤
Cursor keypad
⑦
Numerical keys
⑥
,
⑧
Control keys
System description
2.2 PPU versions
Software and hardware
24
Service Manual, 08/2018, 6FC5397-5DP40-6BA1