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Book Title
78-13113-06 B0
Chapter 1 Overview and Specifications
Optical Cable Specifications
Optical Cable Specifications
Table 1-7 provides optical cable specifications for the uplink cards.
Table 1-5 OC48 SFP Module Specifications for the RPR/SRP Uplink Card
Specification Description
Dimensions (H x W x D) 0.34 in. x 0.54 in. x 2.2 in. (8.6 mm x 13.7 mm x 56.5 mm)
Connectors LC-type connector
Wavelength SFP-OC48-SR—1310 nm
SFP-OC48-IR1—1310 nm
OC48-SFP-LR2—1550 nm
Cabling Distance (maximum)
1
1. Optical distances are only for reference in a typical application, actual distance will vary depending on the number of splices, quality
of fibres, and other significant factors
.
SFP-OC48-SR—1.2 miles (2 km)
SFP-OC48-IR1—9.3 miles (15 km)
OC48-SFP-LR2—50 miles (80 km)
Operating temperature range 22.9
o
F to 185
o
F (-5
o
C to 85
o
C)
Storage temperature range -40
o
F to 185
o
F (-40
o
to 85
o
C)
Table 1-6 OC48 SFP Power Specificiations for the RPR/SRP Line Card
SFP Module Transmit Power Receive Power Power Budget
Maximum Minimum Maximum Minimum
SFP-OC48-SR= -3 dBm -10 dBm -3 dBm -18 dBm 8.0 dBm
SFP-OC48-IR1= 0 dBm -5 dBm 0 dBm -18 dBm 13 dBm
OC48-SFP-LR2= 3 dBm -2 dBm -9 dBm -28 dBm 26 dBm
Table 1-7 Uplink Card s Optical Cable Specifications
Uplink Card Type Connector Type
Operating
Wavelength Transmit Power
1
2
1. If dBm levels are lower than specification requirements (too much power), add attenuation until correct readings apply. Attenuation should be added in
–5, –10, or –25 dBm increments.
2. If dBm levels are higher than specification requirements (not enough power), clean all optics and reduce number of fiber splices/connections. Verify the
integrity of the fiber cable, and make sure there are no kinks, breaks, tight coils, or bends.
Receive Sensitivity Minimum Distance
Single-Mode
Short-Reach
LC Duplex 1310 nm –3 dBm (max)
–10 dBm (min)
–3 dBm (max)
–18 dBm (min)
1.2 miles (2 km)
Single-Mode
Intermediate-Reach
LC Duplex 1310 nm 0 dBm (max)
–5 dBm (min)
0 dBm (max)
–18 dBm (min)
9.3 miles (15 km)
Single-Mode
Long-Reach 1
LC Duplex 1310 nm 3 dBm (max)
–2 dBm (min)
–9 dBm (max)
–27 dBm (min)
25 miles (40 km)
Single-Mode
Long-Reach 2
LC Duplex 1550 nm 3 dBm (max)
–2 dBm (min)
–9 dBm (max)
–28 dBm (min)
50 miles (80 km)