IBM 2702 Information Manual page 46

Start/Stop Terminal Controls
IBM Terminal Control-Type
I
IBM Terminal Control-Type II Telegraph Terminal Control-Type II
Telegraph Terminal Control-Type!
(1050, 60, and 70.2740, ( 1030)
(TTY
33 and 35)
(TTY
28 and 2712 M2)
and 2741 with Interrupt).
Search
Command invalid for these terminals.
Breok
Command invalid for Command invalid for
this terminal.
this terminal.
Poll
Command invalid for these terminals.
Dial No Auto Call Command invalid for
No Auto Call feature installed.
feature installed. this terminal.
Add Prep Commands invalid for siS.
Set Mode
Invalid
Command invalid for 2702/2703.
Command
Figure 2-11. Sense Bit 0, Command Reject (Part 1, SIS)
Binary Synchronous Terminal Control
Read Line in Transparent Wait Mode.
Poll
Prepare
Enable
Disable
Set Mode
Dial
Line in Transparent Wait Mode, or no Auto Call Feature installed.
Break
Commands invalid for BSC.
Inhibit
Search
Line in Transparent Wait Mode, or no Station Selection feature installed on this line.
Add Prep
Figure 2-11. Sense Bit 0, Command Reject (Part 2, BSC)
Start/Stop Terminal Controls
IBM Terminal Control-Type
I
IBM Terminal Control-Type
II
Telegraph Terminal Control-Type II
(1050,60, and 70. 2740,
(1030.)
(TTY
33 and 35)
and 2741 with Interrupt)
Write
~
I. Data set power off. 5. "Break" signal received (applicable only for Write Command to 2741
2. Data set ON HOOK.
with Interrupt, IBM TC Type I).
Prepare
3. Data set not in data mode.
4. Line not enabled.
Read
H
I. Same as write I, 2,3, & 4.
Inhibit
H
2. Open line for over I character time.
Poll ..
I. Same as Write I, 2, 3, & 4.
2. Open line for over I character time.
Dial
I. Auto Call data set power off.
l. Auto Co" data set power off.
2. No Auto Co II data set attached.
2. No Auto Call data set attached.
Search
H
Break ..
L
Line not enabled.
Figure 2-12. Sense Bit 1, Intervention Required (Part 1, SIS)
Binary Synchronous Terminal Control
Write ..
I. Data set power off .
Poll ..
2. Data set ON HOOK.
Read***
3. Data set not in data mode.
Search***
4. Data set not attached to 2703.
Add Prep***
Prepare
5. Line is not enabled.
Dial
I. Auto Call data set power dff.
2. No Auto Call data set attached.
*Line did not become Transmit Operational within 28 seconds.
**Line did nat became Receive Operational within timeout period specified by
terminal control.
***Line did nat became Receive Operational within I Second.
Figure 2-12. Sense Bit 1, Intervention Required (Part 2, BSC)
2-30
Command invalid for
this terminal.
Telegraph Terminal Control-Type I
(TTY 28 and 2712 M2)
Line not enabled.
I. Line nat enabled.
2. Open line for aver I char. time.
I. Line not enab led.
2. Open line for over I char. time.