Apple Ethernet And Localtalk Prod Service Manual
K
Service Source
Ethernet and LocalTalk
Products
K
Service Source
Specifications
Ethernet and LocalTalk Products
Specifications RJ-11 LocalTalk Connectors - 1
RJ-11 LocalTalk Connectors
Topology
Termination
Connector T ypes
Transmission Speed
Bus or star topology
Star implemented using central hub (not available from Apple)
Required at both ends of cable
Terminating resistor provided with each connector
Device side: DB-9 for Macintosh 128K, 512K, 512K enhanced,
Plus, and LaserWriter/LaserWriter Plus; mini DIN-8 for all
other AppleTalk compatible Apple products
Network side: RJ-11
230.4 Kbps
Specifications RJ-11 LocalTalk Connectors - 2
Cable T ype
Maximum Cable Distance
Regulatory
Certification
Operating Temperature
Relative Humidity
Unshielded twisted pair (utp)
Only outer pair of pins (pins 2 and 5) of the four wires are used;
inner pair, pins 3 and 4, are still available.
550 m (1800 ft.)
FCC Class A tested
No agency approvals required; not defined as a computing device.
32–31° F (0–55° C)
10–90% noncondensing
Specifications Ethernet NB Twisted Pair - 3
Ethernet NB Twisted Pair
Topology
Connector T ype
Transmission Speed
Power Dissipation
Cable T ype
Operating Temperature
Star with IEEE 802.3-compatible 10Base-T hub
Ethernet 10Base-T compliant RJ-45 port
10 megabits per second (Mbps)
3.75 W or less (2 W average)
Unshielded twisted pair (utp)
50°–104° F (10°–40° C)
Specifications Ethernet NB Twisted Pair - 4
Relative Humidity
20–95% noncondensing at a temperature range of 77°–104°ÊF
(25°–40° C)
Specifications Ethernet 10T/5 Workgroup Hub - 5
Ethernet 10T/5 Workgroup Hub
Topology
Connector T ype
Transmission Speed
Star topology in minimum configuration; modified star when
additional hubs are added
Total of five connectors:
Four RJ-45 connectors for attaching to 10Base-T, Ethernet
twisted pair cabling
One Apple Ethernet port (AAUI) connector for attaching to
Macintosh host or LaserWriter printer with Apple Ethernet
port
10 megabits per second (Mbps)
Specifications Ethernet 10T/5 Workgroup Hub - 6
Diagnostic Displays
Power Dissipation
Cable T ype
Maximum Cable Distance
Expansion Capabilities
Operating Temperature
Four LED indicators display Ethernet status (Link) and data
transmission (one per port)
Maximum 1.9 W, average 1.5 W
Standard Category 3 or Category 5 twisted-pair cabling
Complies with IEEE 802.3 standards
Expansion adapter allows for connection of up to four additional
workgroup hubs
50–104° F (10–40° C)
Loading...