RS-232 Fiber Optic Micromodem

M82xxD

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VERSITRON’s M82xxD Micromodem Series provide fully transparent fiber optic transmission for data, clock and control signals. Micromodems provide synchronous or asynchronous, continuously variable, data transmission from 1 bps to 128 Kbps in terminal timing. Mode of operation is either full duplex or simplex. Small enough to install directly to data terminal and communications equipment, these modems offer versatile solutions and complete transparency for data communications. M82xxD modems provide handshaking control signals associated with RS-232, RS-423 and MIL-STD-188-114A (Unbalanced).


Product Features

  • Handshaking standard on all models
  • Multimode or Singlemode versions available
  • Small Compact Design for limited space installations
  • Mean Time Between Failure greater than 14 years
  • Fully Transparent Operation with independent data, clock and control lines
  • Installation as Modem Links (DCE-DCE) or Interface Extenders (DCE-DTE)
  • Optional use of Host Power with M82xxD Series Micromodems
  • Electrical Isolation eliminates ground potential rise and provides dielectric isolation
  • Standalone or 19” rack mounting with redundant power applications
  • Extruded Aluminum Housings for better protection and extended product life
  • Standards Conversion for RS-232, RS-423, MIL-188-114A (Unbalanced)
  • Compatible with VERSITRON FOM II series modems

Product Models:

Model

Function

Connector

Fiber Cable

Wavelength

Link Budget

Max Distance

M8213D

RS-232 - DCE

LC

MM

1310nm

11 ± 1 dB

2km

M8223D

RS-232 – DTE

LC

MM

1310nm

11 ± 1 dB

2km

M8215D

RS-232 – DCE

LC

SM

1310nm

19 ± 1 dB

20km

M8225D

RS-232 – DTE

LC

SM

1310nm

19 ± 1 dB

20km

General Specifications:

Dimensions

1.0 x 2.4 x 4.5 in. / 2.54 x 6.1 x 11.43 cm. (H x W x L)

Weight

.425 lbs / 0.2 kg

Operating Temperature

-30°C to 70°C

Storage Temperature

-40°C to 85°C

Relative Humidity

Up to 95% non-condensing

Altitude

Up to 10,000 ft

Electrical Interface

Power Requirements

+5 to +15VDC @300mA (M82xxD models may use host power on pin 9)

Protocol

Synchronous or Asynchronous (auto-sensing)

Data Rate

Continuously Variable from 1 bps to 128 Kbps Terminal Timing;
1 bps to 100 Kbps Source Timing

Operation

Full Duplex or Simplex

Error Rate

Better than 10⁻⁹

Connector

DCE – Female DB25 for M8213D, M8215D
DTE – Male DB25 for M8223D, M8225D

M82xxD Digital Interface

RS-232, RS-423, MIL-188-114A (Unbalanced)

Chassis & Accessories

Model

Description

MRR-16

16-Slot Rack Mount Chassis

M0004

100-240V/1A 47-63Hz to 12VDC Power Supply

M0001

Power Jumper 6” Cable. (One per Micromodem Required)

PSAC08

110VAC to 12VDC Power Adapter (USA)

PSAC09

220VAC to 12VDP Power Adapter (European)

M0011

RS-530 DCE to RS-449 DCE (Female) Adapter

M0012

RS-530 DTE to RS-449 DTE (Male) Adapter

M0013

RS-530 DCE to V.35 DCE (Female) Adapter

M0014

RS-530 DTE to V.35 DTE (Male) Adapter

M0021

DB25 Gender Changer, Male-to-Male

M0022

DB25 Gender Changer, Female-to-Female