S.I. Tech Home » Mini Modems » Model 2897(T3) / 2898(E3) / 2899(STS-1 or OC-1)

Model 2897(T3) / 2898(E3) / 2899(STS-1 or OC-1)

T3/E3/STS1 to Fiber Modem

 

This part is discontinued. Please contact Bomara Associates for an alternative solution.

S.I. Tech Model 2897(T3) / 2898(E3) / 2899(STS-1 or OC-1) T3/E3/STS1 to Fiber Modem

 

S.I.Tech 2897/2898/2899 Bit-Driver is designed to work with T3, E3, or STS-1 systems. Model 2897/2898/2899 is a T3, E3, or STS-1 to fiber optic transmitter/receiver full duplex product implementing T3, E3, or STS-1 protocol. 2CH normal operating data rate is 44.736 Mbps. (E3 - 34.368 Mbps, STS1 - 51.84 Mbps)

This fiber optic Bit-Driver product eliminates many disadvantages of metallic T3, E3, or STS-1 signals, especially EMI/RFI, ground loops (electrical isolation with fiber), high attenuation (high signal loss), limiting distance between nodes of system, and potential lightning damage outdoors between buildings.

S.I.Tech Model 2897/2898/2899 is a rack mounted product allowing easy change from T3, E3, or STS-1 to fiber. Simply connect T3, E3, or STS-1 cable to model 2897/2898/2899 input/output port. Model 2893/2894/2895 comes with power supply and status indicators.

Specifications

Operation Mode:

Synchronous, half/full duplex
2CH 44.736 Mbps, T3
2CH 34.368 Mbps, E3 (G.703)
2CH 51.84 Mbps, STS-1 (OC-1)

Input/Output Interface: T3, 75Ω Coax (BNC)
E3, 75Ω Coax (BNC)
Transmission Line Interface: 4 ST Fiber Optic Receptacles
Connector Options: ST, SC, or FC
Transmission Distance: 6600 ft. or 2 Km
Distance Options: 5 Km, 10 Km, and Single mode
Transmitter Output Power: 30 Microwatts into 50 Micron fiber
Receiver Wavelength: 820 nm or 1300 nm
Minimum Sensitivity: 3 Microwatts @ 820 nanometers
Bit Error Rate: 10<sup>-9</sup>
Operating Temperature: -20 C to 70 C
Metal Enclosure: 7.5" X 7" X 3" (19 X 17.8 X 7.6 cm)
1U Rack Mounting Option: 17.0"W X 1.7"H X 7.5"D (43.2 X 4.3 X 19.0 cm)
Weight: 3 lb.(1.36 kg)/Rack 6 lb.(2.72kg)
Input Power: 110 VAC, 60 Hz, 10W
Power Options: 110 VAC, 220VAC, or 48VDC

 

Fiber Size (Microns)
Attenuation (dB/Km)
Distance (Meters)
Distance (Feet)
Wavelength (nm)
Wavelength (nm)
Wavelength (nm)
850
1300
1550
850
1300
1550
850
1300
1550
50
3.0
1.0
-
2000
6000
-
6600
20000
-
62.5
4.0
1.0
-
2000
6000
-
6600
20000
-
10 SM**
-
0.35
0.25
-
10000
12000
-
33000
40000

 

Ordering Information

2897(T-3), 2898(E-3), 2899(STS-1 or OC-1) units available with several options.
2897 - ST Rack mounted, 110 VAC, ST
2897 - SM - SC Rack mounted, Single mode, SC, 110 VAC
2897 - V 220 Volt AC Power unit
2897 - 48 48 VDC Power unit
2897 - SM - HP - SC Rack mounted, Single mode, High power, 110 VAC, SC
2897/850/1300 Unit for use with WDM
2898 - ST Rack mounted, 110 VAC, ST
2898 - SM - SC Rack mounted, Single mode, SC, 110 VAC
2898 - V 220 Volt AC Power unit
2898 - 48 48 VDC Power unit
2898 - SM - HP - SC Rack mounted, Single mode, High power, 110 VAC, SC
2898/850/1300 Unit for use with WDM
2899 - ST Rack mounted, 110 VAC, ST
2899 - SM - SC Rack mounted, Single mode, SC, 110 VAC
2899 - V 220 Volt AC Power unit
2899 - 48 48 VDC Power unit
2899 - SM - HP - SC Rack mounted, Single mode, High power, 110 VAC, SC
2899/850/1300 Unit for use with WDM




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