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Network Card
3708
Description
IBM 3708 Description
Network conversion unit
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Also See for 3708
:
End-user reference
(144 pages)
,
Planning and installation
(482 pages)
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Contents
Table of Contents
Bookmarks
Table of Contents
Table of Contents
Introduction
Overview
Advantages
IBM 3708 Network Conversion Unit
The 3708 in the Network
1-3. Two Kinds of Dual SNA Host Connections
Hardware Components of the 3708
3708 Base
3708 Cartridge
Functions
Protocol Conversion
Display Support
Printer and Keyboard Printer Support
Multiple Logical Unit Support
Protocol Enveloping
ASCII Pass-Through
Functions Available for each Mode
Control Terminal Functions
Hosts
SNA Hosts
ASCII Hosts
ASCII Devices
Special Cartridges for the IBM 3151, 3161, 3162, 3163, and 3164
Chapter 2. 3708 Operation
LED Sequences and Steady States
Sequences
Normal Power on and Restart Light Sequence
Extended Diagnostic Sequence
Relocate Customer Setup Light Sequence
Steady States
Base and Cartridge Lights Blinking Alternately
Base and Cartridge Lights both off
Base and Cartridge Lights Blinking Together
One or both of the Lights on Solid
Restart on Error Loop
Configurations
IBM-Supplied Configuration
Customer-Defined Configuration
Operational Configuration
Update Configuration
Permanently Reinstating the IBM-Supplied Configuration
Operational Configuration
Establishing a Session
Logon Procedures
3708 Port Logon Screens
Terminal Type Selection Screen (C2)
Host Selection Screen (C3)
Logon Indication Screen (C4)
Short Logon Screens
Control Terminal Password Screen (C5)
Control Terminal Logon
SNA Host Logon
ASCII Host Logon
Ending Host Sessions and Disconnecting from the 3708
SNA Hosts
Conditional Disconnection
Unconditional Disconnection and Session Termination
Unconditional Session Termination
Available Characters by Receive Queue Size
Nonswitched Asynchronous Line Activation
Switched Line Activation - CDSTL
Switched Line Activation - Not CDSTL
Asynchronous EIA 422A Line Activation
SDLC Link Activation PRTS
SDLC Link Activation Controlled RTS
Asynchronous Line Operation - HDX Communication Facility - HDX Control Unit
Asynchronous Line Operation - FDX Communication Facility, PRTS, HDX Control Unit
Asynchronous Line Operation - FDX Communication Facility, PRTS, Echoplex (FDX or HDX CU)
Asynchronous Line Operation - FDX Communication Facility PRTS - FDX Control Unit
Establishing a Session with a 3708
3708 Session Components
3708 Sessions
Maximum Number of Lus Associated with each 3708 Downstream Port
Associating 3708Lus with Host Lus
SNA Commands
Transmission Formats
Transmission Header
Activate Physical Unit (ACTPU)
Supported SNA Commands
Activate Logical Unit (ACTLU)
Deactivate Logical Unit (DACTLU)
Deactivate Physical Unit (DACTPU)
Notify
Bind
BIND Check
BIND for Protocol Enveloping
Recommended Logmode Table Settings for Protocol Enveloping
Unbind
Clear
Start Data Traffic (SDT)
Bid
Cancel
Chase
Signal
Termself
LU Status (LUSTAT)
Ready to Receive (RTR)
Recfms
Reqms
Shutdown
Shutdown Complete
FM Data
Summary of SNA Commands
Pacing
Pacing (L U Type I SCS)
Pacing (LU Type 2 and LU Type 3 DSC)
Pacing for LU Type 1 NTO Sessions
LU-LU Session Error Reporting
SNA Responses
SNA Sense Codes
Between Bracket (BETB) State
Bracket States
In Bracket (INB) State
Pending Begin Bracket (Pend.bb) State
Session Processing States
3708 Bracket State Errors
Inbound from the 3708
Outbound to the 3708
RU Lengths
Segmenting of Request/Response Units
SSCP Communications after an LU Type 2 BIND
SSCP Communications before the BIND
Switching between SSCP-LU and LU-LU Sessions
Messages from the Host
SSCP Communication to Displays
SSCP Communication to Printers
SSCP Communications after an LU Type 1 (NTO) BIND
Messages from the Terminal
SNA Printer Control
Data Flow in Protocol Conversion Mode
3270 Data Stream (LU Type 2)
Flow of Data from the SNA Host
Flow of Data from the Tenninal
12/14 Bit Addressing
3270 Data Stream Commands
Buffer Addresses for Displays
Host Data
The Write Control Character (WCC) Byte
Write Operation
Erase All Unprotected (BAU) Command
Erase/Write Alternate Command
Erase/Write Command
Write Command
Read Buffer
Read Operation
Full-Read-Modified Response
Read Modified Command
Orders and Attributes
Read Modified All Command
Selector Light-Pen Response
Short Read Response
Buffer Control Orders and Order Codes
Set Buffer Address (SBA)
Start Field (SF)
Erase Unprotected to Address (EUA)
Insert Cursor (IC)
Program Tab (PT)
Repeat to Address (RA)
Processing the 3270 Data Stream
3270 Data Stream (LU Type 3)
Commands
Formatted Printouts
Print Line Formatting
Unformatted Printout
Printer Compatibility Features
3270 Data Stream (LU Type 1)
Back Space (BS)
SCS Control Code Descriptions
SCS Control Codes Overview
Carriage Return (CR)
Enable Presentation (BNP)
Form Feed (FF)
Horizontal Tab (HT)
Inhibit Presentation (INP)
Interrecord Separator (IRS)
Line Feed (LF)
New Line (NL)
Set Horizontal Format (SHF)
Set Line Density (SLD)
Set Vertical Format (SVF)
Transparent (TRN)
Configuration Options (Protocol Conversion)
Device Class
Graphic Escape (GE)
Set Attribute (SA)
Vertical Channel Select (YCS)
Vertical Tab (YT)
3270 Model Emulation
Operating Mode
Bits/Character
Interface Type
Parity
Translation Options
Delay after Carriage Return
Delay after Form Feed
Maximum Platen Length
Printer Authorization Matrix Options
Nonstandard Operations
Display Image
Displays
Display Fields
Attributes and Field Attribute Characters
Automatic Skip
Colors
Support for the IBM 3270 Models 2, 3, 4, and 5
How the Host Determines Screen Sizes
Internal Storage Requirements for Large Screens
LOCAL COPY Functions with Large Screens
Processing Binds
Ending the Alternate Mode
Status Line
How the 3708 Updates the Status Line
Displays with an Addressable Status Line
Displays Without an Addressable Status Line
Device Emulation
IBM 3708 Status Line Format
Ready Status
Session Indicator
Status Line Format
Session Status
Insert Status
Null Blank Status
Type-Ahead Status
Printer Status
Nnncodes
Cursor
Nulls Vs. Blanks
The Keyboard and Its Functions
Key Sequences for 3270 Functions
Keys Vs. Key Sequences
Terminal Controlled Keys
Key Sequences for Non-3270 Functions
Controlling Displays with Terminal Tables
Standard and Enhanced Terminal Tables
Terminal Tables
The Terminal Table Format
General Description Section
The Printer Authorization Matrix Screen
Parity Error Substitution Character
Allow Terminal Break
Attention Key Substitution Character
Recognize Terminal Attention
Translate Option
Turnaround Characters
Recognize System Request Simulation
Send Read Prompt
Text Timeout
Delay after Carriage Return
Delay after Form Feed
Delete Rubout Character
Delay after Receipt of CR
Inactivity Time out
Line Quiet Time
Nonstandard Operations
BREAK Support
Protocol Enveloping Host Considerations
Sscpfm
Term=Twx
TSO Terminal Profile
SSCP Communication
Data Flow Description
Flow of Data from the SNA Host
Flow of Data from the Terminal
Enveloping Features
Host Autodial
Transparency
Chapter 4. Protocol Conversion Mode
Chapter 6. ASCII Pass-Through Mode
Choosing an ASCII Host
Abnormal Conditions
Operations in Pass-Through Mode
Terminating Pass-Through Mode
Configuration Notes
Dial out
Chapter 7. Nonstandard Operations
Chapter 8. Network Management and Problem Determination
Using the 3708 Alerts
Types of Errors
Detecting Problems in an SNA and SDLC Network
CNM Formats Supported by the 3708
NMVT 0080 Alert
NMVT 8080 Alert
Reqmsjrecfms Type 01 Secondary SDLC Test Counters
Reqmsjrecfms Type 02 Error Summary Data
Reqmsjrecfms Type 03 Port Error Counters
NMVT 0000 Alert
NMVT 0025 Alert
Using Netview
Viewing Alerts at the Control Terminal Display
Alert Message Formats
Sending Alerts to the SNA Hosts
NMVT 0000 Alert Format
Counters and Boundaries
Display of an RTM Log
Encryption
Protocol Conversion Features
Protocol Conversion PC File Transfer Summary
ASCII Pass-Through
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