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Start/Stop Terminal Controls
IBM Terminal Control- TyPOl
I
IBM Terminal Contral - Type II
Telegraph Terminal
Telegraph Terminal Control-Type
I
(1050,60, and 70. 2740,
(1030)
Contral Type II
(TTY 28 and 2712 M2)
and 2741 with Interrupt.
(TTY 33 and 35)
Read
1. No character received within 3 sec. in contral mode
A 28-secand time lapse has
1. First char. not received within
(awaiting response ta selection or polling).
2 sec.; Receive bit OFF.
2. No character received for 28 sec. when in text mode.
occurred between characters;
2. A 28-second time lapse occurred
Receive bit ON.
between characters; Receive bit ON
Dial
Abandon Call & Retry returned fram Auto Call data set.
Disable
Data set did not ga ON
Data set did not go ON HOOK
HOOK within 28 sec. of
within 28 sec. of issuance of
issuance af Disable.
Disable.
Prepare
Open line (continuous space) for 28 sec.
Search
I
Sa me as Read.
Poll
No character received within 3 sec. in Poll mode
(awaiting response to selection or polling.
Enable
Data set did not go OFF
HOOK within 28 sec. of
issuance of Enable.
Inhibit
Open line for 28 sec.
Any
Transmit
Line did not become transmit operational within 28 seconds.
except
Wrap
Figure 2-18. Sense Bit 7, Timeout Complete (Part 1, SIS)
Binary Synchronous Terminal Control
Write
No Write is received within 3 sec. when in Transparent Wait Mode.
Read
None of the following characters or character sequences has been received within 3 secands:
Characters
ENQ, ACK, NAK, EOT, SOH, ar STX.
Character Sequences
DLE - STICK
SYN - NON SYN (if not in Transparent Mode)
SYN - NON DLE (if in Transparent Mode)
Search
None of the following characters or character sequences has been received within 1 sec. while in Control A Mode or Control B Mode,
ar within 3 sec. while in Test Mode or Transparent Made.
Characters
ENQ, ACK, NAK, EOT, SOH, ar STX.
Character Sequences
DLE -STICK
SYN - NON SYN (SYN-NON DLE in lieu of SYN-NON SYN for Transparent Mode)
Dial
Abandon Call and Retry returned from Auto Call data set.
Enable
Switched Network data set did not go OFF HOOK within 28 sec. of issuance of Enable.
Figure 2-18. Sense Bit 7, Timeout Complete (Part 2, BSC)
2-34
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