Robust DataComm rdc485fo-dv-2p-st Converter 规格指南

Making Industrial Data Flow Like Water ... Safely, Silently, & Sanely

Robust DataComm Pte Ltd (USA) 26471 Portola Pkwy #1E-242, Foothill Ranch CA 92610-1743, +1,972-248-7466
(International) 18 Kaki Bukit Road 3 #02-08 Entrepreneur Business Centre Singapore 415978, +65,6487-5624

   The rdc485fo safely and easily connects your 
panel mounted RS-422/485 devices to fiber 
optic cables up to 4 km long, providing the 
ultimate in isolation, surge, and noise 
protection.  Even the RS-485 port is galvanically 
isolated from the DC supply ground.  ST or SMA 
connectors can be selected, plus the quality 
Hewlett Packard components used are 
guaranteed to work with 62.5/125, 100/140, 
and 50/125 µm fiber sizes.

Model: rdc485fo

Dimensions in mm (and inches)

Specification

Signal Type

Voltage Level

Permitted Surge

Supply to Fiber

RS-485 to Fiber

Supply to RS-485

Order Information

rdc485fo

38 to 58 Vdc

9v to 36 Vdc

5v DC +/- 5%

User Indications

Max Speed

Character Setting

User Indications

Standard Distance

Practical Distance

: at least 115Kbps at standard distances
  at least 1Mbps for MB+ (2Mbps Tested)
: transparent, no configuration required
: Yellow LED indications for Txd and Rxd
: 1000m for EIA/RS-485; 2 Km 62.5/125 µm fiber
: less than 3000m for RS-485, 4000m for fiber
  (requires quality, low-cap cable < 50 pf/m)

   Isolation, industrial design, small size, DIN rail 
mount, user indication, and wide range DC 
supply make the rdc485fo a very engineer- 
friendly device for your industrial data 
communication system.

: EIA/RS-422A & RS-485A
: -7 to +12vDC
: +/- 25 vDC

: -40C to +65C
: -40C to +100C
: 10 to 90% RH, non-condensing
: wire up to 2.5mm (12 AWG)
: 9-pin, 30µ gold pins/sockets rated 500 cycles
: nylon polymide, fungus and termite resistant
  self-extinguishing
: approx 130g
: DIN EN 50 022 or DIN EN 50 035

Mechanical / Environment

Communication

Power Supply

Isolation

25 (1.0)

79 (3.1)

85.5 (

3

.4)

90.5 (

3

.6)

93.0 (

3

.7)

EN 50 022 - 7.5mm
EN 50 035
EN 50 022 - 15mm

98 (3.9)

Block Diagram

Copyright © 2001 RDC

-

-

-

5v

5v +/- 5% Regulated DC Supply

9v to 36v Unregulated DC Supply

dv

38v to 58v Unregulated DC Supply

hv

non-isolated, RS-485 (SGnd = supply V-)

1Kv isolation between RS-485 & supply

1p

2p

RS-485 (compatible with EIA-422)

Isolated

Supply

T+

R+

Gnd

T-

5-pin Removable Compression Terminal Blocks

V+
V--

LED

R-

Main
Supply

LED

T+
T-

Gnd

screw terminals

screw terminals

LED

TX

RX

Connector

Fiber Size

Insertion Loss

Technology

Power

Fiber Optic

: ST (bayonet)  or  SMA (threaded)
: 62.5/125, 100/140, and 50/125 µm
: for ST, is a repeatable 0.2dB typically
: 820 nm wavelength, GaAIAs emitters
: typically -12dBm into 62.5/125 µm fiber

: Intrinsically Isolated
: Intrinsically Isolated
: 1-port = none ; 2-port = 2.5Kv

Operating Range

Storage Range

Relative Humidity

Terminals

D-shell connecter

Case Material

Weight

Mounting Rail

: 30 mA (Max) @ 48 Vdc
: 50 mA (Max) @ 24 Vdc
: 200 mA (Max) @ 5 Vdc
: Green LED for each isolated supply

ST bayonet connector (® of AT&T)

st

SMA threaded connector

sma