Trusted in Industrial Communication for 20+ YearsIndustrial networking products for harsh, mission-critical environments
Layer 3 Managed Industrial Ethernet Switch

Pt33-G-CHS3M4GX-RD2

4 x gigabit SFP combo ports, up to 24 x 100M/gigabit copper/optical ports

Features and Benefits
  • Gigabit ConnectivityModular design, 3 x 8-port 100M/gigabit optical/electrical module slots
  • Gigabit ConnectivityHighly reliable redundant ring network, link recovery <20ms
  • Rugged EnclosureHigh-strength aluminum alloy sealed housing, shock/vibration resistant
  • Rugged EnclosureFanless industrial dust-proof design, stable for long-term operation
  • Gigabit ConnectivitySupports AutoSniffer, intelligent industrial network management
Overview

The Pt33-G-CHS3M4GX-RD2 Layer 3 modular rack-mount industrial Ethernet switch is a high-performance switch designed for railway transit, industrial automation and other network communication. It complies with EN50155, EN50121, UL61010 and other industry standards, and has obtained CE, FCC, UL and other certifications. It is suitable for operation in harsh working environments, providing highly reliable industrial network connection solutions for various application sites.

The Pt33-G-CHS3M4GX-RD2 features a modular design with flexible port configuration and excellent scalability, providing 4 x 100M/gigabit Combo (SFP/GT) ports and up to 24 x 100M/gigabit copper or optical ports (3 x 8-port 100M/gigabit optical/electrical optional modules).

The Pt33-G-CHS3M4GX-RD2 supports CLI, Telnet, SNMP, SSH, and Web-based network management, as well as Layer 2 switching features including VLAN, IGMP Snooping, Port Trunk, Port Security, Port Mirror, and QoS, along with Layer 3 routing features including OSPF and VRRP.

Technical Parameters
Standards Compliance
Standard IEEE 802.3i(10Base-T) IEEE 802.3u(100Base-TX) IEEE 802.3ab(1000Base-T) IEEE 802.3ad (Link Aggregation) IEEE 802.3z(1000Base-SX/LX) IEEE 802.3x (Flow Control) IEEE 802.1p (Priority) IEEE 802.1Q(VLAN) IEEE 802.1d(STP) IEEE 802.1w(RSTP) IEEE 802.1s(MSTP) IEEE 802.1X (Authentication) IEEE 802.3ad(LACP)
Switching Properties
Switching Characteristics Store and Forward
Switching Capacity 144Gbps
Packet Forwarding Rate 41.66Mpps
Cache Capacity 12Mbit
MAC Address Table 16K
Switching delay <10μs
Port Performance
Optical Port 4 x 100M/gigabit Combo (SFP/GT) ports, LC
Module Slots 3 x 8-port 100M/gigabit optical/electrical optional module slots
Module Type (Optional) 8 x 10/100/1000Base-T copper port module, RJ45 8 x 100/1000Base-FX SFP slot module, LC 4 x 10/100/1000Base-T(X) copper + 4 x 100/1000Base-FX SFP slot module, w/o SFP connectors, RJ45+LC 4 x gigabit optical ports, ST (SM/MM selectable) 4 x gigabit optical ports, SC (SM/MM selectable)
Management Port 1 x Console port (RS-232), RJ45
LED Indicators System (SYS), Power (P1,P2), Port (Link/ACT)
Key Features
VLAN Supports Port-based VLAN Supports IEEE 802.1Q VLAN Supports Private VLAN Supports Protocol VLAN Supports Voice VLAN Supports MAC VLAN Supports basic QinQ Supports flexible QinQ Supports VLAN Translation Supports N:1 VLAN Translation
DHCP Supports IPv4/IPv6 DHCP Client, DHCP Relay Supports Option 82, Option 37/38 Supports IPv4/IPv6 DHCP Snooping, DHCP Server
Reliability Supports STP, RSTP, MSTP Supports LACP load balancing Supports VRRP Supports EMVTE (ULPP+ULSM) Supports G.8032 ERPS ring protocol Supports loopback detection, VCT, DDM Supports Dying Gasp power failure alarm Supports ULDP (Cisco UDLD equivalent)
Security Supports port rate limiting Supports broadcast storm control (packets/bytes) Supports port/MAC binding, MAC filtering Supports MAC limit per port/VLAN Supports anti-ARP spoofing/scanning, ARP binding Supports DHCP Snooping, ND Snooping Supports DAI Supports standard/extended 802.1X, Web Portal Supports TACACS+
Routing Static routing, RIP V1/2, RIPng, OSPF, OSPFv3, BGP, BGP4+, ECMP, route policy
Multicast Supports IGMP v1/v2/v3 Snooping, IGMP Fast Leave Supports MLD v1/v2 Snooping Supports multicast VLAN, IPv4/IPv6 DCSCM
QoS Supports flow classification based on ACL, VLAN ID, CoS, ToS, DSCP, IPv6 FlowLabel Supports aggregate PolicyMap Supports port/VLAN-based PolicyMap binding Supports single-rate single-bucket, single-rate dual-bucket, dual-rate dual-bucket policing Supports DSCP, CoS/802.1p, ToS field rewrite Supports 8 queues per port Supports SP, WRR queue scheduling
ACL Supports IP ACL (Src/Dst IP, protocol, precedence, TCP/UDP ports) Supports MAC ACL (Src/Dst MAC, VLAN ID, CoS) Supports IP+MAC combined ACL Supports custom ACL Supports time-based ACL Supports port/VLAN-based ACL binding Supports ACL-based redirect Supports traffic statistics based on ACL matching
Management Supports CLI Supports IPv4/IPv6 HTTP Supports IPv4/IPv6 FTP/TFTP Supports IPv4/IPv6 SNTP/NTP Supports IPv4/IPv6 Telnet with RADIUS auth Supports IPv4/IPv6 SSH Supports Security IP management Supports IPv4/IPv6 Syslog Supports SNMPv1/v2c/v3 Supports MIB interface, Trap Supports RMON groups 1/2/3/9 Supports multiple config files Supports LLDP Supports port mirroring, RSPAN, ERSPAN Supports sFlow traffic monitoring Supports OAM
Mechanical
Dimensions 440mm x 300mm x 44.5mm (W x D x H), without mounting ears
Weight 4.9kg
Mounting 19-inch 1U rack-mount
Other IP40 protection, corrugated high-strength aluminum enclosure
Electrical
Input Voltage 24VDC (18~36VDC) redundant power input, 10-pin 7.62mm pitch terminal block
Wattage <37.5W
Environmental
Operating Temperature -40℃~75℃
Storage Temperature -40℃~85℃
Relative Humidity 5%~95% (non-condensing)
Certifications
System Certification ISO9001,ISO14001,ISO22163(IRIS)
Product Certification CE, FCC, Telecom Equipment Network Access License
Safety Compliant with EN60950
EMC EMI FCC CFR47 Part 15B Class A, CE EN55032 Class A
EMS ESD EN61000-4-2
RS EN61000-4-3
EFT EN61000-4-4
Surge EN61000-4-5
CS EN61000-4-6
PFMF EN61000-4-8
Vibration Compliant with IEC 60068-2-6
Shock Compliant with IEC 60068-2-27
Free Fall Compliant with IEC 60068-2-32
MTBF MTBF > 500,000 hours
Resources
Name Version Release Date Download
Datasheet for Pt33-G-CHS3M4GX-RD2 248.0 KB
v1.3 Jul 22, 2026
Ordering Information
ModelDescription
Pt33-G-CHS3M4GX-RD2 Layer 3 modular rack-mount industrial Ethernet switch chassis with 4-port 100M/gigabit Combo (SFP/GT), 3 x 8-port gigabit optical/electrical optional module slots, 2 x 18~36VDC PSUs standard

Ready to get started?

Have a question about purchasing a solution that you are interested in? Fill in the form and we'll respond in 1 working day.

+86 400 898 3720
Expert customer service on call. 24/7 Phone Support
Email
Get advice, answers, and solutions when you need them. For general questions, email us at info@transcendcom.com
  • Customized Service

    Tailored solutions to meet your specific needs, including OEM/ODM services and bulk sale support.

  • Full Support & Service

    Experienced R&D team, making up 39% of our workforce. Assist with installation, configuration, and troubleshooting.

0/5000