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

T3/E3/STS1 to Fiber Modem

• T3, E3, or STS-1 (OC-1)
• Local/Remote Loopback
• Status indicators & alarms for ease of use and maintenance
• Multimode or single-mode fiber option
• Up to 25 km at low cost
• Ref: 2893-2R

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