Trusted in Industrial Communication for 20+ YearsIndustrial networking products for harsh, mission-critical environments
Layer 2 Smart Managed Industrial Ethernet Switch

Carat55-D4GF8GTIP-D3

12-Port DIN-Rail Layer 2 PROFINET Industrial Switch

Features and Benefits
  • Gigabit Connectivity4 x gigabit SFP slots, 8 x 10/100/1000 Base-T(X) Ports (RJ45 Connector)
  • Gigabit ConnectivitySupports PROFINET, EtherNet/IP and Modbus TCP
  • Relay AlarmSupports 18~72VDC redundant power input, relay alarm output
  • Relay AlarmHigh-strength aluminum alloy sealed housing,rugged and durable
  • DIP SwitchIndustrial fanless dust-proof design, suitable for long-term operation
  • DIP SwitchSupports AutoSniffer device management software
Overview

Carat55-D4GF8GTIP-D3 is a managed DIN-Rail Layer 2 PROFINET industrial Ethernet switch purpose-built for network communications in railway systems and industrial automation. Designed for harsh operating environments, it delivers highly-reliable industrial network connectivity for diverse field-application sites.

Adopting store-and-forward switching mode, the unit offers 8×10/100/1000 Base-T(X) RJ45 copper ports and 4×Gigabit SFP slots. It provides non-blocking wire-speed 1000 M forwarding and supports IEEE 802.3x full-duplex flow control plus back-pressure flow control for half-duplex operation.It supports CLI, Telnet, SNMP, SSH and Web-based network management, alongside Layer 2 switching features including VLAN, IGMP Snooping, Port Trunking, Port Security, Port Mirroring, and QoS.

Technical Parameters
Standard Compliance
StandardsIEEE 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)
Switching Properties
Switching CharacteristicsStore and Forward
Switching Capacity56Gbps
Packet Forwarding Rate17.86Mpps
Cache Capacity12Mbit
MAC Address Table16K
Switching delay<10μs
Port Performance
electrical port8 x 10/100/1000 Base-T(X) ports, RJ45, auto flow control, full/half duplex mode, MDI/MDI-X adaptive
Optical Port4 x gigabit SFP slots, LC
Management Port1 x Console port (RS-232), RJ45
LED IndicatorsSystem (SYS), Power (P1, P2), Port (Link/ACT)
Key Features
Industrial ProtocolPROFINET, EtherNet/IP, Modbus TCP
VLAN FeaturesSupports IEEE 802.1Q VLAN
ReliabilitySupports STP, RSTP, MSTP, MRP
Supports LACP load balancing
Supports G.8032 ERPS ring protocol
Supports loopback detection
SecuritySupports port rate limiting
Supports storm control
MulticastSupports IGMP v1 / v2 / v3 snooping, IGMP Fast leave
QoSSupports ACL-based flow, VLAN ID, CoS, DSCP
Supports DSCP, CoS / 802.1p priority,
Supports 8 queues per port
Supports SP, WRR queue scheduling
ACLSupports IP ACL based on source/destination IP, IP protocol type, IP precedence, TCP/UDP source and destination port numbers
Supports MAC ACL based on source/destination MAC, VLAN ID, CoS
Supports IP+MAC combined ACL
Management and MaintenanceSupports CLI
Supports IPv4 HTTP
Supports IPv4 FTP/TFTP
Supports IPv4 SNTP/NTP
Supports IPv4 SSH
Supports IPv4 Syslog
Supports SNMPv1 / v2c/v3
Supports MIB interface, Trap
Supports dual image
Supports LLDP
Mechanical
Dimensions77mm x 140mm x 187mm (W x D x H)
Weight1.58kg
MountingDIN-Rail, optional wall-mount
OtherIP40 protection, corrugated high-strength aluminum enclosure
Electrical Performance
Input Voltage24VDC (18 ~ 72VDC) redundant power input, overload and reverse polarity protection, 6-pin 5.08mm pitch terminal block (relay occupies 2 pins)
Alarm Port1-channel relay alarm output, terminal block
Wattage<23W
Operating Environment
Operating Temperature-40℃ ~ 75℃
Storage Temperature-40℃ ~ 85℃
Relative Humidity5% ~ 95% (non-condensing)
Standards and Certifications
System CertificationISO9001, ISO14001, ISO22163(IRIS)
Standards CertificationCE,FCC
SafetyCompliant with EN60950
EMC
EMIFCC CFR47 Part 15B Class A, CE EN55032 Class A
EMSESDEN61000-4-2
RSEN61000-4-3
EFTEN61000-4-4
SurgeEN61000-4-5
CSEN61000-4-6
PFMFEN61000-4-8
VibrationCompliant with IEC 60068-2-6
ShockCompliant with IEC 60068-2-27
Free FallCompliant with IEC 60068-2-32
MTBFMTBF > 300,000 hours
Resources
Name Version Release Date Download
Datasheet for Carat55-D4GF8GTIP-D3 349.6 KB
V1.2 Aug 25, 2026
Ordering Information
ModelDescription
Carat55-D2GF8GTIP-D3 *Industrial DIN-rail L2 managed Profinet Ethernet switch *2 x 100/1000BaseSFP slots + 8 x 10/100/1000BaseT(X) ports *18~72 VDC redundant power inputs *IP40 protection level
Carat55-D4GF8GTIP-D3 *Industrial DIN-rail L2 managed Profinet Ethernet switch *4 x 100/1000BaseSFP slots + 8 x 10/100/1000BaseT(X) ports *18~72 VDC redundant power inputs *IP40 protection level
Carat55-D4GF16GTIP-D3 *Industrial DIN-rail L2 managed Profinet Ethernet switch *4 x 100/1000BaseSFP slots + 16 x 10/100/1000BaseT(X) ports *18~72 VDC redundant power inputs *IP40 protection level
Carat55-D12GT2GSC20D3IP-D2 *Industrial DIN-rail L2 managed Profinet Ethernet switch *12 x 10/100/1000BaseT(X) ports + 2 x 100/1000 Base optical slots(SC singlemode dual fibre, 1310nm, 20km) *18~36 VDC redundant power inputs *IP40 protection level

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