BS ISO 8802-7:1991

1 Scope
2 Normative references
3 Definitions
4 Specification for the coding of bits and
       structure of slots and mini-packets
4.1 Encoding of bits
4.2 Slots
4.3 Mini-packet structure
5 Specification for configuration components
5.1 Monitor
5.2 Logging station
5.3 Nodes
5.4 Free-standing repeaters
5.5 Slave power supplies
5.6 Ring cables
5.7 Ring connector sockets
5.8 Continuity plugs
5.9 Topology
5.10 Total SR-LAN Size
5.11 Ring segment length
5.12 Combination of components
6 Specification for free-standing repeaters
6.1 Compliance
6.2 Interfaces
6.3 Power supply
6.4 Production of output
6.5 Output in absence of input signal
6.6 Output in presence of input signal
7 Specification for nodes
7.1 Compliance
7.2 Interfaces
7.3 Operator controls
7.4 Power supply
7.5 Output in absence of input signal
7.6 Output in presence of input signal
7.7 Slot structure
7.8 Input and output mini-packets
7.9 Error procedures
7.10 Reception of mini-packets
7.11 Transmission of mini-packets
7.12 Node-DTE interface lines
7.13 Reading from node
7.14 Writing to node
7.15 Enabling and disabling
8 Specification for monitor
8.1 Compliance
8.2 Connectors
8.3 Operator controls
8.4 Power supply
8.5 Modes of operation
8.6 Production of output
8.7 Start/restart mode
8.8 Run mode
8.9 Resynchronization mode
8.10 Error reporting procedures
9 Specification for logging station
9.1 Compliance
9.2 Interfaces and controls
9.3 Power supply
9.4 Production of output
9.5 Output in absence of input signal
9.6 Output in presence of input signal
9.7 Slot structure
9.8 Processing of mini-packets
9.9 Errors detected by logging station
9.10 Error recording
9.11 Analysis of messages
9.12 Combination with monitor
9.13 Combination with node
10 Specification for slave power supplies
10.1 Compliance
10.2 Power rating
10.3 a.c. component of output
10.4 Control of output
10.5 Connection to ring
10.6 Combination with other devices
11 Specification for media access control procedures
       for data terminal equipment
11.1 Notation
11.2 Media access control service
11.3 Media access control unitdata status reporting
       service
11.4 Transmission frame format
11.5 Procedure for transmission of frames
11.6 Method of transmitting logical mini-packets
11.7 Determination of transmission results
11.8 Reception of logical mini-packets
11.9 Mapping of logical mini-packets onto frames
11.10 Processing
11.11 Issue of MA-UNITDATA indication
11.12 Functions at the node interface
11.13 Node interface lines
11.14 Read registers
11.15 Write registers
12 Specification for implementation requirements for
       media access control in general purpose terminal
       equipment
12.1 Compliance
12.2 Testing
12.3 MAC service access points and addresses
12.4 Implementation of MAC service at MAC-SAPs
12.5 Node class compatibility
12.6 Action on MA-UNITDATA request
12.7 Frame format
12.8 Frame transmission
12.9 Transmission of mini-packets
12.10 Determination of response
12.11 Reception of mini-packets
12.12 Mapping of mini-packets on to frames
12.13 Processing of frames
12.14 Issue of MA-UNITDATA indication
12.15 Management functions
12.16 Node interface connector
12.17 Implementation of node interface functions
12.18 Technical documentation
Annexes
A Ring segment length test
A.1 Principle
A.2 Equipment
A.3 Test procedure
B Sensitivity test
B.1 Equipment
B.2 Procedure
C Closed loop transfer characteristics test
C.1 Principle
C.2 Apparatus
C.3 Procedure
D Illustration of power and signal arrangements
E Repeater classes
E.1 Distinction between classes
E.2 Class I: repeaters with first order phase locked
       loops
E.3 Class II: repeaters
E.4 Class III: repeaters with dominant second order
       phase locked loops
F Compatibility of nodes
F.1 Compatibility with other nodes
F.2 Compatibility with monitor
F.3 Error message logging function
F.4 Compatibility with DTEs

Gives the requirements for a local area network that utilizes the slotted ring access method, and that operates at 10 Mbits/second data rate. Defines the terms used in this part of ISO 8802, specifies the coding of bits and structure of slots and mini-packets, describes in general terms, the components of a configured slotted ring local area network in detail, the functional requirements for ring cable, ring connector sockets and ring continuity plugs; and the constraints on the size of, and the combination of components in, a configured SR-LAN. Some clauses specify in detail the functional requirements for the following components: free standing repeaters, nodes, monitors, logging stations and slave power supplies. Also gives details of Clause 11.