Technical Documentation

Interface Specifications for SFP+ Transceivers for QFX3500 Device Access Ports

Access ports in QFX3500 devices support SFP and SFP+ transceivers. This topic describes the optical interfaces supported for those transceivers. It also specifies the copper interface supported for the SFP transceivers.

Caution: Do not place a copper transceiver in an access port directly above or below another copper transceiver. Internal damage to the access ports and device can occur. Because of this limitation, a maximum of 18 copper transceivers can be installed in ports 6 through 41. We recommend using only the top row of access ports for copper transceivers.

Note: Use only transceivers purchased from Juniper Networks for your QFX Series device.

The optical transceivers installed in QFX3500 devices support digital optical monitoring (DOM): you can view the diagnostic details for these transceivers by issuing the operational mode CLI command show interfaces diagnostics optics. The command does not give any output for copper transceivers or transceivers not purchased from Juniper Networks.

The three tables in this topic describe the optical interface support over single-mode fiber-optic (SMF) and multimode fiber-optic (MMF) cables and copper interface support over four-pair, Category 5 shielded twisted-pair cables:

Table 1—Copper interface support and optical interface support for Gigabit Ethernet SFP transceivers.
Table 2—Optical interface support for Fibre Channel SFP+ transceivers.
Table 3—Optical interface support for 10-Gigabit Ethernet SFP+ transceivers.

Note: For information about the SFP+ direct attach copper (DAC) cables that are supported on the QFX3500 device, see Interface Specifications for SFP+ DAC Cables for QFX3500 Device Access Ports. For information about the QSFP+ to four SFP+ breakout cables that are supported on the QFX3500 device, see Interface Specifications for QSFP+ DAC Breakout Cables for QFX3500 Device Uplink Ports.

Table 1: Copper Interface Support and Optical Interface Support for Gigabit Ethernet SFP Transceivers in QFX3500 Devices

Ethernet Standard	Specifications
1000BASE-T	Model number	QFX-SFP-1GE-T
	Rate	1000 Mbps
	Connector type	RJ-45
	Fiber count	Copper
	Transmitter wavelength	–
	Minimum launch power	–
	Maximum launch power	–
	Minimum receiver sensitivity	–
	Maximum input power	–
	DOM support	Not available
	Software required	Junos OS Release 11.1 or later
	Fiber type	Copper
	Core/cladding size	–
	Modal bandwidth	–
	Distance	100 m (328 ft)
1000BASE-SX	Model number	QFX-SFP-1GE-SX
	Rate	1000 Mbps
	Connector type	LC
	Fiber count	Dual
	Transmitter wavelength	850 nm
	Minimum launch power	–9.5 dBm
	Maximum launch power	–3 dBm
	Minimum receiver sensitivity	–21 dBm
	Maximum input power	0 dBm
	DOM support	Available
	Software required	Junos OS Release 11.1 or later
	Fiber type	MMF	MMF	MMF	MMF
	Core/cladding size	62.5/125 µm	62.5/125 µm	50/125 µm	50/125 µm
	Fiber grade	FDDI	OM1	–	OM2
	Modal bandwidth	160 MHz/km	200 MHz/km	400 MHz/km	500 MHz/km
	Distance	220 m (721 ft)	275 m (902 ft)	500 m (1640 ft)	550 m (1804 ft)
1000BASE-LX	Model number	QFX-SFP-1GE-LX
	Rate	1000 Mbps
	Connector type	LC
	Fiber count	Dual
	Transmitter wavelength	1310 nm
	Minimum launch power	–9.5 dBm
	Maximum launch power	–3 dBm
	Minimum receiver sensitivity	–25 dBm
	Maximum input power	–3 dBm
	DOM support	Available
	Software required	Junos OS Release 11.1 or later
	Fiber type	SMF
	Core/cladding size	9/125 µm
	Modal bandwidth	–
	Distance	10 km (6.2 miles)

Table 2: Optical Interface Support for Fibre Channel SFP+ Transceivers in QFX3500 Devices

Fibre Channel Standard	Specifications
2GFC, 4GFC, 8GFC (Short-Wavelength)	Model number	QFX-SFP-8GFC-SW
	Rate	2.125 Gbps, 4.25 Gbps, 8.5 Gbps
	Connector type	LC
	Fiber count	Dual
	Transmitter wavelength	850 nm
	Minimum launch power	–8.2 dBm
	Maximum launch power	–1.3 dBm
	Minimum receiver sensitivity	–11.2 dBm
	Maximum input power	0 dBm
	DOM support	Available
	Software required	Junos OS Release 11.1 or later
	Fiber type	MMF	MMF	MMF
	Core/cladding size	62.5/125 µm	50/125 µm	50/125 µm
	Fiber grade	OM1	OM2	OM3 (OM4 compatible)
	Modal bandwidth	200 MHz/km	500 MHz/km	1500 MHz/km
	Distance	2.125 Gbps: 150 m (492 ft) 4.25 Gbps: 70 m (229 ft) 8.5 Gbps: 21 m (68 ft)	2.125 Gbps: 300 m (984 ft) 4.25 Gbps: 150 m (492 ft) 8.5 Gbps: 50 m (164 ft)	2.125 Gbps: 500 m (1640 ft) 4.25 Gbps: 380 m (1246 ft) 8.5 Gbps: 150 m (492 ft)

Table 3: Optical Interface Support for 10-Gigabit Ethernet SFP+ Transceivers in QFX3500 Devices

Ethernet Standard	Specifications
10GBASE-SR	Model number	QFX-SFP-10GE-USR
	Rate	10 Gbps
	Connector type	LC
	Fiber count	Dual
	Transmitter wavelength	850 nm
	Minimum launch power	–7.3 dBm
	Maximum launch power	–1.3 dBm
	Minimum receiver sensitivity	–11.1 dBm
	Maximum input power	–9.9 dBm
	DOM support	Available
	Software required	Junos OS Release 11.1 or later
	Fiber type	MMF		MMF		MMF
	Core/cladding size	62.5/125 µm		50/125 µm		50/125 µm
	Fiber grade	OM1		OM2		OM3 (OM4 compatible)
	Modal bandwidth	200 MHz/km		500 MHz/km		1500 MHz/km
	Distance	10 m (32 ft)		30 m (98 ft)		100 m (328 ft)
10GBASE-SR	Model number	QFX-SFP-10GE-SR
	Rate	10 Gbps
	Connector type	LC
	Transmitter wavelength	850 nm
	Minimum launch power	–7.3 dBm
	Maximum launch power	–1 dBm
	Minimum receiver sensitivity	–9.9 dBm
	Maximum input power	–1 dBm
	DOM support	Available
	Software required	Junos OS Release 11.1 or later
	Fiber type	MMF	MMF	MMF	MMF	MMF
	Core/cladding size	62.5/125 µm	62.5/125 µm	50/125 µm	50/125 µm	50/125 µm
	Fiber grade	FDDI	OM1	–	OM2	OM3 (OM4 compatible)
	Modal bandwidth	160 MHz/km	200 MHz/km	400 MHz/km	500 MHz/km	1500 MHz/km
	Distance	26 m (85 ft)	33 m (108 ft)	66 m (216 ft)	82 m (269 ft)	300 m (984 ft)
10GBASE-LR	Model number	QFX-SFP-10GE-LR
	Rate	10 Gbps
	Connector type	LC
	Transmitter wavelength	1310 nm
	Minimum launch power	–8.2 dBm
	Maximum launch power	0.5 dBm
	Minimum receiver sensitivity	–18 dBm
	Maximum input power	0.5 dBm
	DOM support	Available
	Software required	Junos OS Release 11.1 or later
	Fiber type	SMF
	Core/cladding size	9/125 µm
	Modal bandwidth	–
	Distance	10 km (6.2 miles)
10GBASE-ER	Model Number	QFX-SFP-10GE-ER
	Rate	10 Gbps
	Connector type	LC
	Fiber count	Dual
	Transmitter wavelength	1550 nm
	Minimum launch power	–4.7 dBm
	Maximum launch power	4 dBm
	Minimum receiver sensitivity	–11.3 dBm
	Maximum input power	–1 dBm
	DOM support	Available
	Software required	Junos OS Release 11.3 or later
	Fiber type	SMF
	Core/cladding size	9/125 µm
	Modal bandwidth	–
	Distance	40 km (24.8 miles)

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Interface Specifications for SFP+ Transceivers for QFX3500 Device Access Ports

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Published: 2012-03-23