Cable Specifications - Transition Networks E-FL-HB-0400 User Manual

CABLE SPECIFICATIONS

10BASE-2 Cable Specifications
10BASE-2 CABLE CHARACTERISTICS:
Cable type:
Impedance:
Mutual Capacitance:
Maximum Cable Length:
Maximum number network connections:
Minimum distance between connections:
Terminate 10BASE-2 cable at one end using a 50 ohm terminator and at the other end
using a 50 ohm terminator grounded to earth ground.
AUI/10BASE-5 Cable Specifications
10BASE-5 CABLE CHARACTERISTICS:
Cable type:
Impedance:
Capacitance:
Maximum Cable Length:
Maximum number network connections:
Minimum distance between connections:
Terminate 10BASE-5 cable at one end using a 50 ohm terminator and at the other end
using a 50 ohm terminator grounded to earth ground.
AUI CABLE AND CONNECTOR SPECIFICATIONS
The cable is a special 4-pair individually shielded with an overall braided shield.
Maximum AUI Cable Length:
AUI CONNECTOR CHARACTERISTICS:
AUI Port: Male DB-15 with locking posts.
AUI Connection: Cable shell must be grounded.
Connector Legend: 1 Logic Ref.
2 Collision+
3 Transmit+
4 Logic Ref.
5 Receive+
10BASE-FL Cable Specifications
Fiber Optic Cable Recommended:
Optional:
Wavelength
Fiber Optic Transmitter Power:
Fiber Optic Receiver Sensitivity:
Typical Maximum Cable Distance*:
*Actual distance dependent upon physical characteristics of network installation.
Stranded Coaxial RG58 (ThinNet)
50 @ 10 MHz
24 pF/ft ±20% @ 10 MHz
185 meters (610 feet)
30
0.5 meters (1.6 feet)
RG8 Solid Coaxial (ThickNet)
50 @ 10 MHz
26pF/ft
500 meters (1650 feet)
100
2.5 meters (8.2 feet)
50 meters (165 feet)
6 Power Return 11 Logic Ref
7 N/C 12 Receive
8 Logic Ref. 13 Power
9 Collision-- 14 Logic Ref.
10 Transmit- 15 N/C
62.5 / 125 µm multimode fiber
100 / 140 µm multimode fiber
85 / 125 µm multimode fiber
50 / 125 µm multimode fiber
1300 nM
min: -__._ dBm max: -__._ dBm
min: -__._ dBm max: -__._ dBm
2000 meters (6600 feet)
E-FL-HB-0x00 in Half-Duplex Network
The 5-4-3 Rule applies separately to each collision domain. NOTE: A
collision domain is any Carrier Sense Multiple Access with Collision Detection
(CSMA/CD) network in which a collision will occur if two attached stations
transmit at the same time. A segment is the cable connection between two
network interfaces.
USING THE 5-4-3 RULE:
The 5-4-3 Rule allows no more than five segments in any 10-Mb/sec
Ethernet collision domain, no more than four repeaters (hubs) and no
more than three populated segments (10Base-2 or 10BASE-5 coaxial-
cable installations).
To determine the size of the collision domain by assigning segment
numbers to cable connections, determine the two network devices in a
transmission path that are separated by the greatest number of segments.
Define a segment path between the network devices by labeling the
cable connection to the first device "segment 1" and numbering each
segment in the path to the last network device, up to "segment n" (n =
total number of segments 5). Verify that no segment path in the entire
collision domain contains more than n
4
3
10BASE-FL
BB
PWR STAT
COL ACT 1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
3
BB 10BASE-FL
PWR STAT
3
COL ACT 1 2 3 4 5 6 7 8 1 2 4 5 6 7 8
2
1
5 segments.
4
BB 10BASE-FL
PWR STAT
COL ACT 3 7 8 1 2 3 4 5 6 7 8
1 2 4 5 6
4
3
BB 10BASE-FL
PWR STAT
COL ACT 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
4
5