Color:

New national standard four-insert position [with indicator light]]

New national standard four-plug position [with master control switch + indicator light]]

New national standard five insert position [with indicator light]]

New national standard card two plug position [with indicator]]

New national standard plug-in board three positions [with indicator light]]

Line length:

5 m

10 m

15 m

20 m

30 meters

2 m