Address Assignment Considerations 13
Address Boundaries 13
Address Range 13
Addressing Characters 23
AllZeros (Normal) 29
Assemble/ Disassemble Field 16
Attached Communication Lines 5
Attention Key (2741) 45
Auto-Call Feature 21
Automatic Answering 21
Automatic Wraparound 15
Base Expansion Feature 36
bcc (Block-Check Character) 48
Binary Synchronous Commands 55
Bit Count 16
Break 25
BSC (Binary Synchronous Communications) Capabilities 47BSC Special Features 51
Bus Out Check (2-Bit),Sense Byte 31
Busy,Status Modifier, and Control Unit End 29
CAW (Channel Address Word) 11
CB Light 65
CC (Chain Command) 15
CCW (Channel Command Word) 11
CD (Chain Data Flag) 15
CE Test Light 65
Channel Attachment Restrictions 14
Channel End andDevice!:.nd 29
Channel End, Device End, andStatus Modifier
Channel End, Device End, andUnit Check 30 Channel End, Device End, and Unit Exception 30 30 Channel End, Device End, Unit Exception, and Unit Check
Character Address 16
Character RecognitionSummary 41, 42, 43
Command 18
Command Reject(O-Bit), Sense Byte 31, 32, 33, 34
Commands,Start/ Stop 25, 26
Common-Carrier Leased Private-Line TelegraphService 69
Common-Carrier Leased Pri vate-Line TelephoneService 68
Common-Carrier-Provided Facilities 68
Common-Carrier Switched Telephone Network 68
Common-Carrier Switched Teletypewriter Exchange (TWX)
Networks 68
Common Controls andStorage (General) 7
Communication Facilities 68
Communications Line Addressing 12
ControlSignals 23
Control-Type Commands 28
ControlUnit Busy 29
CRC 53CSW (Channel Status Word) 11
Data 19
Data Byte 19
Data Check (4-Bit),Sense Byte 32, 33, 34
Data CommunicationUnits 5, 6
Data LineSet 36
Data LineSet Expander 36
DataService 18 30 Data Set (Modem) Features 54
DetailedDescriptbn of Operations 11
Dial 27
Dial Digits 21
Disable 28
DLE 49OLE-Stick 49
INDEXEBCDIC--:Extended Binary-Coded-Decimal Interchange Code 51
Effect of HaltI/O Instruction and Zero Byte Count 62
Em (Error Index Byte)16,49,50,56. Enable 28
End 18
End of Address@ --EOA 24
End of Block ® --EOB 24
End of Transmission ©--EOT 24
EndingStatus Conditions 29
ENQ 49EOT 50 EOT and NA K 48
Equipment Check (3-Bit),Sense Byte 31
ETB and ETX 48, 49
Exception Commands 28
Feature Limitations per2703 (Sununary) 20 FIGS (Figures Shift) 43, 44
Flags, Command 15
General (Both StartI Stop and BSC) Special Features 19
General Description ofBSC Operations 47
General Description of2703 Operations 7
HaltI/O 14
HaltI/O Instruction (Synchronous) 63
HaItiStack 18
High Address Boundary 13
IBM (Intermediate Block Mode) 18
IBM LineSet lA 36
IBM LineSet IB 36
IBM LineSet 2 36
IBM Terminal Control Base 35
IBM Terminal Control Type I 35
IBM Terminal Control Type I (Detailed) 39
IBM Terminal Control Type II 35
IBM Terminal Control Type II (Detailed) 42
IBM 2711 Line AdapterUnit 9
IBM 2712, Typical Configuration 38
IBM 2712 Remote Multiplexer 9
Indicators 65
Inhibit 27
InitialStatus Conditions 29
Inquiry@ --Positive Answer 24
Internal Organization 8
Interrupt Feature, Type I Terminal 19, 35, 45
Intervention Required (1-Bit),Sense Byte 32, 33, 34
Introduction toBSC 47 I/O Character Count 19 I/O Instructions 14
II0 Interface Controls 7 I/O No-Op 28
ITB 48,50 71
Address Boundaries 13
Address Range 13
Addressing Characters 23
All
Assemble/ Disassemble Field 16
Attached Communication Lines 5
Attention Key (2741) 45
Auto-Call Feature 21
Automatic Answering 21
Automatic Wraparound 15
Base Expansion Feature 36
bcc (Block-Check Character) 48
Binary Synchronous Commands 55
Bit Count 16
Break 25
BSC (Binary Synchronous Communications) Capabilities 47
Bus Out Check (2-Bit),
Busy,
CAW (Channel Address Word) 11
CB Light 65
CC (Chain Command) 15
CCW (Channel Command Word) 11
CD (Chain Data Flag) 15
CE Test Light 65
Channel Attachment Restrictions 14
Channel End and
Channel End, Device End, and
Channel End, Device End, and
Character Address 16
Character Recognition
Command 18
Command Reject
Commands,
Common-Carrier Leased Private-Line Telegraph
Common-Carrier Leased Pri vate-Line Telephone
Common-Carrier-Provided Facilities 68
Common-Carrier Switched Telephone Network 68
Common-Carrier Switched Teletypewriter Exchange (TWX)
Networks 68
Common Controls and
Communication Facilities 68
Communications Line Addressing 12
Control
Control-Type Commands 28
Control
CRC 53
Data 19
Data Byte 19
Data Check (4-Bit),
Data Communication
Data Line
Data Line
Data
Detailed
Dial 27
Dial Digits 21
Disable 28
DLE 49
INDEX
Effect of Halt
Em (Error Index Byte)
End 18
End of Address
End of Block ® --
End of Transmission ©
Ending
ENQ 49
Equipment Check (3-Bit),
ETB and ETX 48, 49
Exception Commands 28
Feature Limitations per
Flags, Command 15
General (Both Start
General Description of
General Description of
Halt
Halt
HaIti
High Address Boundary 13
IBM (Intermediate Block Mode) 18
IBM Line
IBM Line
IBM Line
IBM Terminal Control Base 35
IBM Terminal Control Type I 35
IBM Terminal Control Type I (Detailed) 39
IBM Terminal Control Type II 35
IBM Terminal Control Type II (Detailed) 42
IBM 2711 Line Adapter
IBM 2712, Typical Configuration 38
IBM 2712 Remote Multiplexer 9
Indicators 65
Inhibit 27
Initial
Inquiry
Internal Organization 8
Interrupt Feature, Type I Terminal 19, 35, 45
Intervention Required (1-Bit),
Introduction to
II
ITB 48,