Fiber Optical Converter G703/X.21 230V

The modem 21-1601 and 21-1651 from Fibersystem are combined fiberoptic synchronous and asynchronous modem with four different interfaces.

Description

The modem 21-1601 and 21-1651 from Fibersystem are combined fiberoptic synchronous and asynchronous modem with four different interfaces.

The interfaces are:

  • G.703 unbalanced 2Mbps
  • G.703 balanced Nx64Kbps
  • X.21
  • RS-530, not mounted on products produced after October 2006.

The modems are available in 2 versions.

  • 21-1601 runs on 110-230 VAC , +/- 20%, power supply
  • 21-1651 runs on 48-250 VDC, +/- 20%, power supply

Technical Data

Fiberoptic and data transfer protocol

  • Data speed/protocol:  Fibersystem proprietary protocol.

Optical data

  • Wavelength: 820nm
  • Fiber optical connector: ST
  • Optical System budget:
    • 13dB with multimode fiber (62.5/125 um)
    • 9dB with multimode fiber (50/125 um)
  • Typical distance: 2km
    • 6dB systemmargin for 62.5/125
    • 3dB margin for 50/125

G.703 – 2048kbit/s unbalanced

  • Interface: 2 BNCs, unbalanced 75 Ohm.
  • Protocol: HDB3, 2048 kbit/s

G.703 – balanced, codirectional

  • Interface: 9-pin female D-sub or RJ45
  • Protocol: G.703 codir, 64, 128, 192 or 256 kbit/s

G.703 – balanced, contradirectional

  • Interface: 9-pin female D-sub or RJ45
  • Protocol: G.703 contradir, 64, 128, 192, 256, 384 or 512 kbit/s

X.21

  • Interface: 15-pin female D-sub
  • Protocol RS-422 compatible signals: 4.8, 9.6, 19.2, 38.4, 64, 128, 192, 256, 384, 512, 768, 1024, 1536, 2048 kbit/s. In asynchronous mode up to 256 kbps/s.

Power Supply

  • 48V DC to 250V DC, + 20%
  • 110V AC to 230V AC, 50Hz, + 20%.
  • AC connector: IEC 320, 3 pin
  • Power consumption: <20W.

Physical size

  • The unit can be mounted in a 19” rack. By adjusting, the rack mount brackets, the unit can also be mounted on a wall or similar.
  • Height: 44 mm
  • Width 483 mm (380 mm without rack mount brackets)
  • Depth 238 mm (from front to back, connectors excluded)
  • Weight: 3 kg

Environmental conditions

  • Operating temperature: 0 – 50 C

Technical Manual

Associated products