IBM 3151 User Manual page 119

Reference Information (emulation)
Step 4
Convert the resultant hexadecimal code to the equivalent graphic
character.
In this case, the results are:
uel
?
mel
=
0
lel
?
ue2
?
me2
=
w le2 @
ue3
?
me3
w
le3
@
ue4
}
me4
=
le4
=
?
ueS
K
meS
?
leS
?
ue6 =
0
me6
?
le6 =
?
ue7
?
me7
B
le7
=
?
The form used in the DECDLD device control string for representing a musical
note is:
???}Ko? /oww- ??B/?@@????
5-10
User's Guide for the Cartridge to Emulate IBM and DEC Terminals