Expressway Communication Requirements
1️⃣Adaptation to Harsh Environments
Mountainous expressways feature complex conditions. Devices endure intense solar radiation and high temperatures over 60°C in summer, and low temperatures down to -20°C with frost and ice in winter. Coupled with dust and smoke corrosion, equipment requires high durability, bringing great challenges to network construction.
2️⃣Safe and Reliable Operation
Stable communication is essential for expressway toll gates and service areas. Full-range monitoring devices need 24/7 online operation to enable real-time on-site monitoring and video data storage, providing valid evidence for accident investigation.
3️⃣Efficient and Stable Transmission
Full-coverage HD monitoring generates massive data. The network supports Gigabit and 10-Gigabit high-speed transmission and low latency, ensuring fluent, high-definition real-time monitoring for the management center.
Comark Industrial Switch Performance
Wide Temperature & High Environmental Protection
Fanless design enables stable operation at -40℃~85℃. With lightning protection, IP40 rating and anti-moisture, anti-salt spray and anti-mildew functions, it resists dust and harsh highway environments.
Stable & Fully Tested Performance
Dual power redundancy prevents single-point failure outage. All products are strictly lab-tested with 100,000-hour MTBF, meeting high industry quality standards.
Full Product Portfolio
Our 1G/10G/100G data center switches adopt advanced architecture. They support high-speed L2/L3/L4 wire-speed switching, and integrate IPv6, security, traffic analysis and virtualization for long-term reliable network operation.

Industrial Switch Recommendation
Comark Access Layer Switch——CRS7228M-8GT4GX
- Supports Web management, CLI, SNMP and other maintenance methods.
- Provides Layer 2 functions including STP/ERPS and VLAN.
- Supports 10G SFP+ high-speed transmission.
- Input Voltage: DC 12–55V
- Operating Temperature: -40℃~85℃

Comark Aggregation Layer Switch——CRS7228M-24GT4XG
- Supports Web, CLI, SNMP and other diversified management & maintenance modes.
- Provides Layer 2 functions such as STP/ERPS, VLAN, plus 802.1X and port authentication security features.
- Supports 10G SFP+ high-speed transmission.
- Input Voltage: DC 36~72V / AC 100-240V, 50-60Hz
- Operating Temperature: -40℃ ~ 85℃
Comark Core Layer Switch——CRS7228M-24GT4XG-VL3
- Adopts multiple management modes: Web, CLI and SNMP.
- Equipped with ACL, QinQ, VLAN switching, carrier-grade QoS, industrial 10G ring network and Layer 3 routing functions.
- Supports device virtualization to integrate multiple devices as one, improving overall performance, reliability and management.
- 10G SFP+ high-speed transmission supported.
- Input: AC 100–240V, 50Hz±10%
- Operating temperature: -40℃ ~ 85℃

ConclusionIndustrial switches are core equipment for expressway communication systems. With wide temperature resistance, high protection and anti-interference performance, they adapt to harsh environments like extreme temperatures, dust and frost. Featuring redundant design, reliable transmission and solid security, they support toll communication, HD monitoring and data transmission, ensuring stable and efficient expressway network operation.
For project-specific recommendations, please contact our technical team.