RAD Data comm 10/100BaseT to STM-1/OC-3 Converter RIC-155 Spezifikationen PDF herunterladen (Seite 20)

Chapter 1 Introduction RIC-155 Installation and Operation Manual

1-6 Technical Specifications

• Fiber optic/electrical interface provides connection to the fiber optic or

coaxial cables.

• CPU controls the RIC-155 operation. It includes a microprocessor, flash

memory, and SRAM.

• Power supply provides 5V and +3.3V voltage to the RIC-155 internal

elements.

1.4 Technical Specifications

10/100BaseT

Interface

Number of Ports

Compatibility

Relevant sections of IEEE 802.3u, 802.3x, 802.1p and

802.3q

Data Rate

10BaseT: 10 Mbps

100BaseT: 100 Mbps

Line Code

10BaseT:

Manchester

100BaseT: MLT3

LAN Table

1,024 MAC addresses with automatic learning and aging

Filter Mode

64 bytes: 148,810 pps

1518 bytes: 8,127 pps

Filter TAG Mode

64 bytes: 142,000 pps

1518 bytes: 8,110 pps

Buffer

1 MB

Maximum Frame

Size

1536 bytes

Cable Type

Unshielded twisted pair (UTP), 19–26 AWG

Connector

RJ-45

STM-1/OC-3c

Interface

Fiber Optic Interface

See Table 1-1

Electrical Interface

Line Attenuation

Not greater than 12.7 dB at 78 MHz

Coax Cable Length

135m (442 feet), when using RG-59 B/U (at 78 MHz, in

accordance with the square root of frequency law).

Impedance

75Ω

Connector

BNC coaxial

Timing

• Internal, from internal oscillator

• Loopback, from received signal

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 89 90

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