IBM 3708 Description page 193

In addition, terminals that have the following characteristics may operate in protocol
conversion mode if they provide emulation of a supported device, or if a
user-defined terminal has been created in the 3708:
• Operates in character mode
• Operates with 7-bit data, with odd, even, or no parity
• Provides a setting for host echo of data as opposed to terminal echo
• Can operate with a full duplex data flow
• Uses one of the cursor classes for positioning the cursor on the terminal's display
screen.
Special Processing Provided for Specific Terminal Types
Some of these devices require special processing by the 3708, in addition to the
information contained in the table on page 4-59.
Note: The special considerations described in this list are based on the terminal ID
in byte 0 of the terminal table.
IBM 3161, 3162, and 3163, and IBM 3161 and 3162 (3708 Feature):
Special
processing is provided to handle PF keys 13 to 24. Pressing the PF 1 key on these
terminals sends ESC 1 (X'IB 31') to the 3708, and PF13 sends ESC! 1 (X'IB 21
31'). Normally, the 3708 not distinguish between ESC and ESC !, and both
sequences would cause the PFI function. However, for these terminals, the 3708
detects the exclamation point (!), causing the PF13 function. The same special
consideration applies to PF13 - PF24.
IBM 3164:
When initiating a protocol conversion session, the 3708 sends the
command to put the 3164 into program color mode. The command sequence is
X'IB 21 3944'. Also, the special processing described for the IBM 3161/3162/3163
PF keys applies to the 3164.
IBM 3151:
When initializing a protocol conversion session, the 3708 sends two
sequences to enable the Print Key Attention command and the Reset Key Attention
command. The two sequences are X' 1 B 29 3A' and X' 1 B 28 3A'. Also, the
special processing described for the IBM 3151 PF keys is the same as the IBM 3161,
3162, and 3163.
IBM PC/FTTERM Color and IBM PC/FlTERM Mono:
When initializing personal
computers that are running FTTERM, the 3708 transmits a sequence to FTTERM
to determine its release level. The sequence is ESC [ x m where
x
=
a
x=b
if the 3708 is configured for Transmit XON/XOFF
=
0 and
Receive Queue Pacing Threshold
=
0
if the 3708 is configured for Transmit XON/XOFF
=
0 and
Receive Queue Pacing Threshold
>
O.
If FTTERM responds with an
ESC "',
the 3708 uses a repeat-to-address scheme to
reduce the number of characters transmitted to FTTERM.
DEC VT52, VT100, and VT220 (emulating a VT100):
When initiating a protocol
conversion session, the 3708 sends the command to put these terminals into extended
keypad mode. The command sequence is X' IB 3D' .
4-72
IBM 3708
Description