3Com SECPATH U200-CS Installation Manual page 28

Item
Type
Optical
transmit
power
Min.
Max.
Receiving
sensitivity
Central wavelength
Max. transmission
distance
Fiber type
Interface cable
The NSQ1GP4U0 module can work with SFP optical transceivers using optical fibers with LC-type
connectors.
Figure 2-5 and Figure 2-6 show an SFP optical transceiver and an optical fiber with LC-type connectors
respectively.
Figure 2-5 SFP optical transceiver
Figure 2-6 Optical fiber with LC connectors
(1) LC-type connector
The NSQ1GP4U0 module can work with optical-to-electrical SFP modules using straight-through
or crossover Ethernet cables. See Figure 2-2.
Multi-mode Single-mode
short haul medium haul
–9.5 dBm –9 dBm
0 dBm –3 dBm
–17 dBm –20 dBm
850 nm 1310 nm
0.55 km 10 km (6.21
(0.34 miles) miles)
62.5/125 μm 9/125 μm
multi-mode single-mode
2-5
Specification
Long haul Long haul
(1310 nm) (1550 nm)
–2 dBm –4 dBm
5 dBm 1 dBm
–23 dBm –21 dBm
1310 nm 1550 nm
40 km (24.86 40 km (24.86
miles) miles)
9/125 μm 9/125 μm
single-mode single-mode
(2) Optical fiber
Single-mode
ultra-long
haul
–4 dBm
2 dBm
–22 dBm
1550 nm
70 km (43.50
miles)
9/125 μm
single-mode