Address Assignment Considerations 13
Address Boundaries 13
Address Range 13
Addressing Characters 23
All Zeros (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 47 BSC 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 and Device!:.nd 29
Channel End, Device End, and Status Modifier
Channel End, Device End, and Unit Check 30 Channel End, Device End, and Unit Exception 30 30 Channel End, Device End, Unit Exception, and Unit Check
Character Address 16
Character Recognition Summary 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 Telegraph Service 69
Common-Carrier Leased Pri vate-Line Telephone Service 68
Common-Carrier-Provided Facilities 68
Common-Carrier Switched Telephone Network 68
Common-Carrier Switched Teletypewriter Exchange (TWX)
Networks 68
Common Controls and Storage (General) 7
Communication Facilities 68
Communications Line Addressing 12
Control Signals 23
Control-Type Commands 28
Control Unit Busy 29
CRC 53 CSW (Channel Status Word) 11
Data 19
Data Byte 19
Data Check (4-Bit), Sense Byte 32, 33, 34
Data Communication Units 5, 6
Data Line Set 36
Data Line Set Expander 36
Data Service 18 30 Data Set (Modem) Features 54
Detailed Descriptbn of Operations 11
Dial 27
Dial Digits 21
Disable 28
DLE 49 OLE-Stick 49
INDEX EBCDIC--:Extended Binary-Coded-Decimal Interchange Code 51
Effect of Halt I/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
Ending Status Conditions 29
ENQ 49 EOT 50 EOT and NA K 48
Equipment Check (3-Bit), Sense Byte 31
ETB and ETX 48, 49
Exception Commands 28
Feature Limitations per 2703 (Sununary) 20 FIGS (Figures Shift) 43, 44
Flags, Command 15
General (Both Start I Stop and BSC) Special Features 19
General Description of BSC Operations 47
General Description of 2703 Operations 7
Halt I/O 14
Halt I/O Instruction (Synchronous) 63
HaIti Stack 18
High Address Boundary 13
IBM (Intermediate Block Mode) 18
IBM Line Set lA 36
IBM Line Set IB 36
IBM Line Set 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 Adapter Unit 9
IBM 2712, Typical Configuration 38
IBM 2712 Remote Multiplexer 9
Indicators 65
Inhibit 27
Initial Status 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 to BSC 47 I/O Character Count 19 I/O Instructions 14
II 0 Interface Controls 7 I/O No-Op 28
ITB 48, 50 71
Line Base Configurations 37
Line Base Features (Summary) 19, 20 Line Bases, General 9
Line Bases, Start/ Stop 36
Line Control 23
Line-Control Signals 23
Line. Set Features (Summary) 19, 20 Line Sets, General 10 Line Sets (per Line Base and per 2703) 38
Line Sets, Start/Stop 36 Line-Speed Options, Start/Stop 36
Lost Data (6-Bit), Sense Byte 31
Low Address Boundary 13
LRC Check Character 18
L TRS (Letters Shift) 43, 44
Main Control Word 1 (MCW-1) 16
Main Control Word 2 (MCW-2) 18
Main Data Words 1 and 2 (MDW-1 and MDW-2) 19
Maximum Lines Available by Processor Model 13
Meter Light 65
Meter Switch 6S Metering 65
Metering with TPS Feature 65, 67
Mode 18
No @--Negative Response 24 Operation with the Multiplexer Channel 14 Operator's Control Panel 65, 66 OvelTUn (S-Bit), Sense 31 Pad 49 Parity 18,19 Partition Switches--CPU 1, CPU 2 65 PCl (Program-Controlled Interruption Flag) 15 Poll 25 Polling and Addressing 41, 42, 43 Polling Characters 23 Power-On Light and Switch 65 Prepare 27
Privately Owned Communications Facilities 69
Programming Considerations 15 PSW (Program Status Word) 11 Pwr Off if in Local Switch 6S Read 27
Read and Write Operations in Transparent Mode 59
Receive 18
Receive Operation (Read Command), Start/Stop 24
Receive Operations Using Data-Link Characters 49
Receive-Type Commands 27 28
Reserve 28 Restrictions, Channel Attachment 14 Sadzer, Sadone, Sadtwo, Sadthree 28 SBT --Six-Bit Transcode 51 Search 28 Sense 28 Sense Byte 18 Sense Byte Conditions 30 Sequence 18 Shift 18
72 Skip (Skip Flag) 15 SLI (Suppress Length Indication rIa>?;) 15 SOH and STX 48, 49 Special Features Summary 19 Speed Options (Summary) 20 Start I/O 14 Start of Address ®--SOA 24 Start! Stop Communications Capabilities 23 Start/Stop Special Features 19, 35 Station-Selectjnn Fp:1t11rp .'14 Status Byte 19 Status Byte, All Zeros (Normal) 29
Status Byte Conditions 28 Status Modifier 29 Switches 65 SYN 48, 49
Synchronous Base IA 53 Synchronous Base IB S3 Synchronous Clock Feature 54 Synchronous Line Set 53, 54
Synchronous Line-Speed Option .')4 Synchronous Operations 50 Synchronous Terminal Controls (STC) 51 Synchronous-Type Communications (Special Features) 20 System/360--I10 Operation 11
Telegraph Line Set 36
Telegraph Line Set Expander 36
Telegraph Terminal Control Base 35
Telegraph Terminal Control Type I (Detailed) 35, 42
Telegraph Terminal Control Type II (Detailed) 35, 44
Terminal Control Features (Summary) 19, 20 Terminal Control Operations 39
Terminal Controls, General 9
Terminal Controls, Start/Stop 35
Terminal IntelTUpt Feature, Type I 19, 35, 45
Terminal-to-Terminal Operation with Search 43
Test I/O 15
Thermal Light 65
Timeout 18
Timeout (7 -Bit), Sense Byte 32, 33, 34, 35 TPS--Automatic Switch to Neutral State 22 TPS--Manual Switch to Neutral State 22 TPS (Two-Processor Switch) 21
Transmission Code Checking S3 Transmission Code Transparency 51
Transmit and Receive Operations, General 7
Transmit Operation (Write Command), Start, Stop Transmit Operations Using Data-Link Characters
Transmit-Type Commands 2S Transparent Read Operation 59
Transparent Write Operation 59 Two-Processor Switch (TPS) Feature 21
Type I Terminal Interrupt Feature 19, 35, 45 Unit Check 29
24
48 USASCII--llnited State c of Amrric:, C;t;J.Tl{lard Codr fnc Infnrm;J.tinn Interchange 51 VRC 'CRC S3 VRC, LRC S3 Western Union Type 3002 Channel with Cl Conditioning 69 Western Union Type 3002 Channel with C2 Conditioning
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