Chapter 1 Introduction

RIC-155Installation and Operation Manual

 

 

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

Number of Ports

1

Interface

 

 

 

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

1536 bytes

 

Size

 

 

Cable Type

Unshielded twisted pair (UTP), 19–26 AWG

 

Connector

RJ-45

STM-1/OC-3c

Fiber Optic Interface

See Table 1-1

Interface

 

 

 

Electrical Interface

Not greater than 12.7 dB at 78 MHz

 

Line Attenuation

 

 

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

75

 

Connector

BNC coaxial

 

Timing

Internal, from internal oscillator

 

 

Loopback, from received signal

1-6

Technical Specifications

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RAD Data comm RIC-155 operation manual Technical Specifications