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SRX4300 Chassis

The SRX4300 Firewall chassis is a rigid sheet metal structure that houses all the other hardware components.

Chassis Physical Specifications for SRX4300

The SRX4300 Firewall has a 1RU form factor and can be installed in a standard 19-inch rack. Table 1 summarizes the physical specifications of SRX4300.

Table 1: Physical Specifications of SRX4300
Model Height Width Depth Weight
SRX4300 1.74 in. (4.42 cm) 17.28 in. (43.89 cm) 18.20 in. (46.23 cm) 18.30 lb (8.3 kg)
Note:

We ship the SRX4300 with only one power supply unit (PSU). The weight of an SRX4300 device configured with 2 PSUs is 20.5 lb (9.3 kg).

Chassis Electrical Specifications for SRX4300

Table 2 describes the chassis electrical specifications for SRX4300.
Table 2: Chassis Electrical Specifications for SRX4300

Item

Specification

AC input voltage

Operating range: 100-127 VAC / 200-240 VAC

AC input line frequency

50/60 Hz

AC input current rating

10.52 A at 100-127 VAC

5.26 A at 200-240 VAC

DC input voltage

-40 VDC through -72 VDC

DC input current rating

24 A maximum

Front Panel of an SRX4300

Figure 1 shows the front panel of an SRX4300.

Figure 1: Front Panel Components of SRX4300 Front Panel Components of SRX4300

Table 3 lists and describes the front panel components of the firewall.

Table 3: Components on the Front Panel of the SRX4300

Callout

Component (Label on the Chassis)

Description
1

Ethernet ports

Eight 1/2.5/5/10-Gigabit Ethernet MACsec ports for network traffic.
2

SFP+ ports

Eight 1/10-Gigabit Ethernet SFP+ MACsec ports for network traffic.
3

SFP28 ports

Four 1/10/25-Gigabit Ethernet SFP28 MACsec ports for network traffic.
4

Chassis cluster ports (HA)

Two 1-Gigabit Ethernet SFP chassis cluster control CTL ports with MACsec support
5

Management port (MGMT)

1-Gigabit Ethernet RJ-45 port
6

USB port

One USB 3.0 Type A port that accepts a USB storage device.
7 Chassis LEDs

Indicate component and system status and troubleshooting information at a glance.
8

Power button

Power button
9 Pull tab Contains the CLEI code and serial number of the device.
10

RESET

Reset button. To reset the system, press and hold the RESET button for around 250 ms.
11

Console port (CON)

You can connect a laptop to the SRX4300 for CLI management. The port uses an RJ-45 serial connection and supports the RS-232 (EIA-232) standard.
12

QSFP28 ports

Six 4x10/4x25/2x50/40/100-Gigabit Ethernet QSFP28 MACsec ports for network traffic.
13

Claim code

You can use the QR code to claim and onboard your device to Juniper Security Director.
Note: The chassis cluster (HA) ports only support 1 GbE SFP fiber optics. Do not use copper optics with the HA ports,

See the Hardware Compatibility Tool for a list of all supported optics for the SRX4300.

Rear Panel of an SRX4300

Figure 2 shows the rear panel of the AC variant of the SRX4300.

Figure 2: Rear Panel Components of the AC Variant of SRX4300 Diagram of a server's front panel with labeled sections: control panel with indicators, drive bays with airflow labels, module section, power supply area, and power button.

Table 4 lists and describes the rear panel components of the AC variant of the SRX4300.

Table 4: Components on the Rear Panel of the AC Variant of the SRX4300 Firewall
Callout

Component

Description
1 Grounding point Grounding point
2

Fan modules

Six airflow out (AFO) fan modules (5+1 redundancy).

Five fan modules are required for proper airflow across the chassis internal components. The sixth fan module provides redundancy.
3

PSU (Power Supply Unit)

A 850W AC PSU is provided with the SRX4300.
4 Empty PSU slot Blank slot to install an additional PSU (1+1 redundancy).
5 ESD ESD socket
Note:

We ship the SRX4300 with only one power supply. You can order the second power supply separately, if required.

You must not mix AC and DC power supplies in the same chassis.

Figure 3 shows the rear panel of the DC variant of the SRX4300.

Figure 3: Rear Panel Components of the DC Variant of SRX4300 Rear view technical diagram of server chassis with labeled sections: 1. Power Supply Units, 2. Cooling Fans with AIR OUT airflow, 3. I/O Ports for connections, 4. Drive Bays, 5. Power Button or Indicator.

Table 5 lists and describes the rear panel components of the DC variant of the SRX4300.

Table 5: Components on the Rear Panel of the DC Variant of the SRX4300 Firewall
Callout

Component

Description
1 Grounding point Grounding point
2

Fan modules

Six airflow out (AFO) fan modules (5+1 redundancy).

Five fan modules are required for proper airflow across the chassis internal components. The sixth fan module provides redundancy.
3

PSU (Power Supply Unit)

A 850W DC PSU is provided with the SRX4300.
4 Empty PSU slot Blank slot to install an additional PSU (1+1 redundancy).
5 ESD ESD socket
Note:

We ship the SRX4300 with only one power supply. You can order the second power supply separately, if required.

You must not mix AC and DC power supplies in the same chassis.

Chassis Status LEDs

Figure 4 shows the LEDs on the front panel.

Figure 4: SRX4300 Front Panel Status LEDs Front panel of Juniper Networks SRX4300 highlighting LED indicators: PWR power, STAT status, HA high availability, RPS redundant power supply, SSD0 first SSD, SSD1 second SSD, ALM alarm.
Table 6: SRX4300 Front Panel LEDs
Callout LED Description
1 PWR

  • Solid green—The device is powered on.

  • Blinking green—The device is powered on. The device is in the bootup phase before OS initialization.

  • Red—The power supply has failed and must be replaced.

  • Off—The device is powered off.
2 HA

  • Solid green—All HA links are available.

  • Solid amber—Some HA links are unavailable.

  • Red—Device is inoperable due to a monitor failure.

  • Off—HA is disabled.
3 RPS

  • Solid green—The redundant power supply (RPS) is operating normally.

  • Solid red—The RPS is not operating normally.

  • Off—The RPS is not present on the device.
4 and 5 SSD0 and SSD1

  • Blinking green—The device is transferring data to or from the SSD storage device.

  • Solid red—Indicates an SSD storage device failure.

  • Off—SSD storage device is not present on the device.
6 ALM

  • Solid red—Critical alarm

  • Solid amber—Non-critical alarm

  • Off—No alarms
7 STAT

  • Solid green—The device is operating normally.

  • Solid red—Indicates a hardware component failure.

  • Off—The device is not receiving power.

Management Port LEDs

Figure 5 shows the LEDs for the management ports.

Figure 5: SRX4300 Management Port LEDs Front panel of Juniper Networks SRX4300 Services Gateway with labeled HA CTL, MGMT, CON ports, status LEDs, USB port, and reset button.
Table 7: Management Port LEDs
Callout LED Description
1 Link (LED on the left)

  • Solid green—A link is established.

  • Off—No link established.
2 Activity (LED on the right)

  • Blinking green—There is activity on the link.

  • Off—There is no link activity.

Network Port LEDs

The BASE-T, SFP+, and SFP28 ports have two LEDs to indicate the link activity and status. Figure 6 shows the location of the LEDs on the BASE-T ports and Table 8 describes the LED behaviour.

Figure 6: LEDs on the Network Ports Diagram of two RJ45 Ethernet ports labeled 1 and 2 with symbols 0▲▼1 and g102522, indicating port functions.
Table 8: LEDs on the RJ-45, SFP, SFP+, and SFP28 Network Ports
Callout 1 Callout 2 Description (for RJ-45, SFP, SFP+, and SFP28 ports)

Status LED (Left LED)

Link and Activity LED (Right LED)
Off Off Default (power on with or without Transceiver)
Solid Green Solid Green 25 Gbps link is up but there is no traffic on the port.
Blinking Green 25 Gbps link is up and there is traffic on the port.
Blinking Green Solid Green 10 Gbps link is up but there is no traffic on the port.
Blinking Green 10 Gbps link is up and there is traffic on the port.
Off Solid Green 1 Gbps link is up but there is no traffic on the port.
Blinking Green 1 Gbps link is up and there is traffic on the port.
Off Off This indicates one of the following:

  • The link is down or a fault has occurred.

  • The port has been disabled by the administrator.

The QSFP28 ports have four LEDs to indicate the link activity and status. Figure 7 shows the location of the LEDs on the QSFP28 ports and Table 9 describes the LED behaviour.

Figure 7: LEDs on the QSFP28 Ports Juniper Networks SRX4300 rear panel highlighting 40G/100G QSFP+ ports labeled 0/3 with LED indicators for status.
Table 9: LEDs on the QSFP28 Network Ports
LED State Description
1 (non-channelized) Solid Green 100 Gbps or 40 Gbps link is up but there is no traffic on the port.
Blinking Green 100 Gbps or 40 Gbps link is up and there is traffic on the port.
1-4 (channelized) Solid Green 4x25 Gbps or 4x10 Gbps link is up but there is no traffic on the port.
Blinking Green 4x25 Gbps or 4x10 Gbps link is up and there is traffic on the port.
1-4 Off This indicates one of the following:

  • The link is down or a fault has occurred.

  • The port has been disabled by the administrator.

Figure 8 shows the location of the LEDs on the HA ports and Table 10 describes the LEDs.

Figure 8: LEDs on the HA Ports Front panel of Juniper Networks SRX4300 with HA CTL, MGMT, CON ports, RESET button, status LEDs, USB port, and branding.
Table 10: HA Port LEDs
Callout LED Description
1 Link (LED on the left)

  • Blinking green—A link is established.

  • Off—There is no link established.
2 Activity (LED on the right)

  • Blinking green—There is activity on the link.

  • Off—There is no link activity.