Chapter 15: Specifications

15-1 General specifications

Item

Specification

 

 

 

New satellite JW20/JW20H (JW-21CU/22CU)

Applicable PC

New satellite JW30H (JW-31CUH/32CUH/33CUH,

 

JW-31CUH1/32CUH1/33CUH1/33CUH2/33CUH3)

 

 

Installing slot

Basic rack panel of JW20/JW20H/JW30H

 

 

Storage temperature

－20 to ＋70℃

 

 

Ambient temperature

0 to ＋55℃

 

 

Ambient humidity

35 to 90%RH (without condensation)

 

 

Vibration resistance

JIS-C-0911 equivalent (X, Y, Z, 2 hours each)

 

 

Shock resistance

JIS-C-0912 equivalent

 

 

Internal power consumption

Approx. 360 mA

 

 

Weight

Approx. 285 g

 

 

Accessory

One instruction manual

 

 

15-2 Communication specifications

Item

Specification

 

 

 

 

 

 

Communication method

Token/passing

 

 

 

 

 

 

Transmission rate

1.25M bits/s

 

 

 

 

 

 

Transmission format

JIS X-5014 high level data link control procedure

 

 

Compatible to (HDLC) frame configuration

 

 

 

 

 

 

 

 

 

Coding method

NRZI (Non Return To Zero Inverted)

 

 

 

 

 

 

Check method

CRC

 

 

 

 

 

 

Sync method

Bit synchronous

 

 

 

 

 

 

Modulation method

Continuous frequency phase modulation (FSK)

 

 

 

 

 

 

Communication

Bus type

 

 

network system

 

 

 

 

 

 

 

 

 

Connectors

Module side: BNC receptacle (jack)

 

 

Line side: BNC plug

 

 

 

 

 

 

 

 

 

 

Coaxial cable: 5C-2V JIS · C-3501

 

 

Transmission line

Characteristic impedance: 75 ohm

 

15

 

Total cable distance: 1km max.

 

 

 

 

 

 

15-1