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Model 2107

Fiber Cluster Mini Modem

S.I. Tech Model 2107 Fiber Cluster Mini Modem

  • Custom designed for UNISYS NGEN WORKSTATIONS B28, B38, and B39 SERIES
  • Point to point links up to 6 km
  • 24 Workstation Cluster using S.I.Tech optical (Fiber Cluster) coupler Model 9024 with up to 2 km between workstations
  • Daisy Chain up to 5 NGEN WORKSTATIONS per cluster (requires two 2107 modems per Workstation or five optical couplers)
  • Cluster line termination included in 2107
  • Suitable for secure locations

Specifications

Operation Mode: Synchronous half duplex
Input/Output Interface: DB-9F RS-485 Cluster port operating at 1.8 Mbps
Transmission Line Interface: ST connector is standard for interfacing with fiber optic duplex
Operation Mode: cable (SMA option)
Input/Output Interface: 10 microwatts, 12 dB power
Transmission Line Interface: budget* @ 850 nanometers
Optical Power into a 62.5 50 nanowatts at less than10-9
Micron Core Optical Fiber: bit error rate, 25 microwatts max.
Receiver Sensitivity: 0 C to 50 C
Operating Temperature: 1.75 x 3 x 0.625 in
Metal Enclosure: (4.5 x 7.5 x1.6 cm)
Weight: Panel or DIN rail mounting option
Input Power: 0.25 lb (100 grams)
230V Version: External with power supply

RS - 232 Connector Pins Utilized by 2517 Mini Modem (MALE OR FEMALE)

1*
 AA Protective Ground Chassis
2
 BA Transmitted Data TXD
3
 BB Received Data RXD
4
 CA Request to Send RTS
5
 CB Clear to Send CTS
6**
 CC Data Set Ready DSR
7*
 AB Signal Ground Sig. Gnd.
8**
 CF Data Carrier Detect DCD
9
 Positive 12 VDC Input + 12V
20**
 DC Data Terminal Ready DTR
* Pins 1 and 7 tied together and pins 4 and 5 tied together
** Pins 6, 8, and 20 used to supply power

Operating Distance for Fiber Optic Cable

Fiber Size Attenuation Distance* Distance*
(Microns) dB/km Meters Feet
50 3 1000 3300
62.5 4 1000 3300
100 5 1000 3300

 


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