Juniper SRX320-SYS-JB

Description

The Juniper SRX320-SYS-JB is part of Juniper’s SRX300 Series branch firewall family, designed to consolidate network security, routing, switching, and WAN connectivity for small distributed enterprises.

The appliance provides 8 Gigabit Ethernet interfaces, including the SRX320’s combination of copper Ethernet and SFP connectivity. It also provides two Mini-Physical Interface Module (Mini-PIM) slots, allowing supported WAN and interface expansion options to be added according to network requirements.

The system includes 4GB of DRAM and 8GB of internal flash storage and runs Junos OS. The Junos Software Base package included with the SRX320-SYS-JB provides core networking and security functionality including firewall, NAT, IPsec, routing, MPLS, and switching.

Security capabilities include stateful firewall protection, firewall screens, application-layer gateways (ALGs), NAT, and IPsec VPN. The platform also supports advanced networking features including QoS, DHCP, J-Flow, BFD, VLAN functionality, high availability, MPLS, LDP, RSVP, Layer 3 VPNs, pseudowires, and VPLS.

The SRX320 uses a compact desktop form factor, making it suitable for branch offices, small enterprise locations, retail sites, and other deployments where a full-size rack-mounted firewall is unnecessary. Juniper specifies dimensions of approximately 1.73 × 11.81 × 7.52 inches (4.39 × 29.99 × 19.10 cm).

Key Specifications

The hardware specifications are confirmed by Juniper’s Hardware Compatibility Tool and SRX300 Series documentation.

Junos Software Base Features

The SRX320-SYS-JB includes the Junos Software Base feature set, providing core security and networking functionality such as:

• Stateful firewall
• Firewall screens
• Application Layer Gateways (ALGs)
• Static NAT
• Source NAT (SNAT)
• Destination NAT (DNAT)
• IPsec VPN
• Site-to-site VPN
• Auto VPN
• Group VPN
• Routing
• MPLS
• LDP
• RSVP
• Layer 3 VPN
• Pseudowires
• VPLS
• Ethernet switching
• VLAN support
• Quality of Service (QoS)
• DHCP
• J-Flow
• BFD
• High-availability capabilities

Juniper identifies these core functions as included in the SRX300 Series platform and its base software feature set.

Key Features & Benefits

• Integrated Network Security — Combines firewall and networking functions in a single branch-office appliance.
• 8 Gigabit Ethernet Interfaces — Provides multiple wired connectivity options for LAN and WAN deployments.
• 2 Mini-PIM Expansion Slots — Allows supported interface modules to be added for additional connectivity options.
• 4GB RAM — Provides the system memory required for Junos OS and security/networking functions.
• 8GB Flash Storage — Provides internal storage for Junos OS and system files.
• Junos Software Base Included — Provides core firewall, NAT, IPsec, routing, MPLS, and switching functionality.
• IPsec VPN Support — Enables secure connectivity between branch offices and corporate networks.
• MPLS Support — Suitable for enterprise WAN environments using MPLS technologies.
• Compact Desktop Design — Ideal for installations where rack space is limited.
• External Power Adapter Included — Supplied as part of the SRX320-SYS-JB system package.
• Junos OS Platform — Uses Juniper’s established operating system for enterprise routing and security.
• Flexible Branch Deployment — Designed to consolidate security, routing, switching, and WAN connectivity at distributed locations.

Network Connectivity

The SRX320 provides 8 Gigabit Ethernet interfaces, with the hardware configuration including two 1GbE SFP interfaces in addition to Gigabit Ethernet copper connectivity. This combination allows the appliance to connect to copper-based LAN infrastructure as well as compatible fiber-optic networks through appropriate SFP transceivers.

The two Mini-PIM slots provide additional expansion flexibility for supported Juniper interface modules.

Security & VPN

The SRX320 provides integrated security services designed for branch and distributed enterprise networks.

Core security functions include:

• Stateful firewall
• Firewall policies
• Firewall screens
• NAT
• IPsec VPN
• Application Layer Gateways
• Security zones
• High-availability capabilities

These capabilities allow the SRX320 to operate as a branch firewall, VPN gateway, and secure network-routing platform.

Recommended Applications

The SRX320-SYS-JB is suitable for:

• 🏢 Branch-office security
• 🌐 Enterprise WAN connectivity
• 🔐 Firewall deployments
• 🔄 Site-to-site VPN
• 🏬 Retail and distributed business locations
• 🏭 Industrial branch networks
• 🏫 Small campus environments
• 📡 WAN edge deployments
• 🔗 MPLS networks
• 🛡️ Secure remote-office connectivity

Expansion

The SRX320 includes two Mini-PIM slots for supported Juniper Mini-PIM modules. This allows organizations to customize connectivity according to the requirements of the deployment.

Potential expansion options can include supported WAN and interface technologies, depending on the specific Mini-PIM selected and the Junos OS version installed.

Physical Specifications

The SRX320-SYS-JB has a compact desktop chassis measuring approximately:

• Height: 1.73 in / 4.39 cm
• Width: 11.81 in / 29.99 cm
• Depth: 7.52 in / 19.10 cm

Juniper specifies an operating temperature range of 0°C to 40°C and identifies two fixed fan modules with front-to-back airflow.

Included in the Package

The SRX320-SYS-JB package includes:

• 1 × Juniper SRX320 Services Gateway
• 1 × External power adapter
• 1 × Power cable
• Junos Software Base
• Built-in 4GB RAM
• Built-in 8GB flash storage

Rack-mount kit (RMK): Not included.