Tektronix 11A34 User Reference Supplement page 22

PROBE:
Legend:
L, C, and R mm Left, Center, and Right plug-in
Channel 3, and Channel 4, Aspeaively.
Quoted string dab.
Part 2)peratlt-g the llA34 in 11301 and 11302 Mainframes
inditing what type probe is com-mted
of
If a Level 2 TEKPROBE is connected, the
query Tespollse is 'NONE."