QFX5140 Chassis

Learn about the components in the QFX5140 chassis.

The QFX5140 chassis is a rigid sheet-metal structure that houses all components of the device.

QFX5140 Specifications

Table 1: Physical Specifications
Specification	Value
Specification	Value
Height	1.72 in. (4.3 cm)
Width	17.28 in. (44 cm)
Depth	21.59 in. (53.59 cm)
Weight	As shipped: 24.5lb (11.1 kg) with power supplies and fans installed ( AC PSU Model)

Table 2: Environmental Specifications
Specification	Value
Operating altitude	QFX5140-24CD80-AO: 0 ft to 6000 ft (0 m to 1829 m) at 0°C to 40°C QFX5140-24CD80-AI: 0 ft to 6000 ft (0 m to 1829 m) at 0°C to 35°C 0 ft (0 m) at 0°C to 40°C
Operating temperature	AC Models: 0 °C to 40 °C
Storage temperature	-40 °C to 70 °C (-40 °F to 158 °F)
Relative humidity (operating) (noncondensing)	5% to 90%
Relative humidity (nonoperating) (noncondensing)	5% to 90%
Seismic tolerance	Designed to meet Zone 4 earthquake requirements.
Acoustic noise level	Typical: 78 dBA Note: Acoustic noise level for QFX5140-24CD8O-AI can exceed 78dbA (upto 83.6dBA) depending on the optics used in the system.

Figure 1 shows the front panel components available in the QFX5140 switch.

Figure 1: QFX5140 Front Panel Components

Table 3: Components on the QFX5140 Front Panel
Callout	Item	Description
1	USB port	A USB 3.0 Type A port for plugging in USB storage devices to install Junos OS Evolved manually.
2	PTP and external clock connections	A PTP (Precision Time Protocol) Grandmaster clock and external connection port acts as the highly accurate time source for a network.
3	QSFP112 ports	24 QSFP112 ports designed to handle up to 400 Gb/s
4	OSFP800 ports	8 OSFP800 ports designed to handle up to 800 Gbps.
5	SFP28 port	High-speed network interfaces used for 25-Gigabit Ethernet connectivity.
6	SFP28 port	High-speed network interfaces used for 25-Gigabit Ethernet connectivity.
7	Management port	RJ-45 Ethernet port used for out-of-band management access to the device.
8	Console port	RJ-45 serial port used for direct, local access to the device CLI for configuration and troubleshooting.

Figure 2 shows the rear panel components in the QFX5140 switch.

Figure 2: QFX5140 Rear Panel Components (AC Variant)

Table 4: Components on the QFX5140 Rear Panel (AC Variant)
Callout	Item	Description
1	Power supply units	Two removable AC power supply units that provide electrical power to the device. These are hot-swappable and designed for redundancy.
2	Grounding Lug / Ground Point	Used to connect the device to earth ground; protects against surges and static discharge.
3	Fan Modules	Provide airflow cooling across the chassis and maintain proper operating temperature.