Printronix t8000 Administrator's Manual page 289

Char Dec
GS 29
RS 30
US 31
NOTE:
For the hardware handshake XON/XOFF commands:
XON = Ctrl Q (DC1)
XOFF = Ctrl S (DC3)
Hex Char Dec
1D = 61
1E > 62
1F ? 63
Hex Char Dec
3D ] 93
3E ^ 94
3F _ 95
Hex Char Dec
5D } 125
5E ~ 126
5F 127
Hex
7D
7E
7F
289