Cable Specifications

10BASE-2 Cable Specifications

10BASE-2 CABLE CHARACTERISTICS:

Cable type:	Stranded Coaxial RG58 (ThinNet)
Impedance:	50 Ω @ 10 MHz
Mutual Capacitance:	24 pF/ft ±20% @ 10	MHz
Maximum Cable Length:	185 meters (610 feet)
Maximum number network connections:	30
Minimum distance between connections:	0.5 meters (1.6 feet)

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:	RG8 Solid Coaxial (ThickNet)
Impedance:	50 Ω @ 10 MHz
Capacitance:	26pF/ft
Maximum Cable Length:	500 meters (1650 feet)
Maximum number network connections:	100
Minimum distance between connections:	2.5 meters (8.2 feet)

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

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 ≤ 5 segments.

The cable is a special 4-pair individually shielded with an overall braided shield.

Maximum AUI Cable Length:				50 meters (165 feet)
AUI CONNECTOR CHARACTERISTICS:
AUI Port:	Male DB-15 with locking posts.
AUI Connection:	Cable shell must be grounded.
Connector Legend:	1	Logic Ref.	6	Power Return	11	Logic Ref
	2	Collision+	7	N/C	12	Receive
	3	Transmit+	8	Logic Ref.	13	Power
	4	Logic Ref.	9	Collision--	14	Logic Ref.
	5	Receive+	10	Transmit-	15	N/C

10BASE-FL Cable Specifications

Fiber Optic Cable Recommended:

62.5 / 125 µm multimode fiber

Optional:

100 / 140 µm multimode fiber

85 / 125 µm multimode fiber

50 / 125 µm multimode fiber

Wavelength

1300 nM

Fiber Optic Transmitter Power:

min: -__._ dBm

max: -__._ dBm

Fiber Optic Receiver Sensitivity:

min: -__._ dBm

max: -__._ dBm

Typical Maximum Cable Distance*:

2000 meters (6600 feet)

*Actual distance dependent upon physical characteristics of network installation.

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