RKS-G4028 Series: 28G-port (with 802.3bt PoE option) full Gigabit modular managed Ethernet switches

Input/Output Interface

Alarm Contact Channels

1 relay output with current carrying capacity of 2 A @ 24 VDC

Buttons

Reset button

Ethernet Interface

10/100/1000BaseT(X) Ports (RJ45 connector)

RKS-G4028-4GT models: 4
RKS-G4028-L3-4GT models: 4

100/1000BaseSFP Slots

RKS-G4028-4GS models: 4
RKS-G4028-L3-4GS models: 4
RKS-G4028-PoE-4GS models: 4
RKS-G4028-L3-PoE-4GS models: 4

Module

There are 3 module slots on the switch. Users can select different types of modules to insert into the switch. The modules that can be selected include 8-port/6-port modules with 10/100/1000BaseT(X), 10/100BaseT(X), 100/1000BaseSFP, or 100BaseFX (SC/ST connector) interfaces

Refer to Expansion Modules in the Accessories section for a full list of supported interface modules.

Standards

IEEE 802.1D-2004 for Spanning Tree Protocol
IEEE 802.1p for Class of Service
IEEE 802.1Q for VLAN Tagging
IEEE 802.1s for Multiple Spanning Tree Protocol
IEEE 802.1w for Rapid Spanning Tree Protocol
IEEE 802.1X for authentication
IEEE 802.3 for 10BaseT
IEEE 802.3ab for 1000BaseT(X)
IEEE 802.3ad for Port Trunk with LACP
IEEE 802.3u for 100BaseT(X) and 100BaseFX
IEEE 802.3x for flow control
IEEE 802.3z for 1000BaseSX/LX/LHX/ZX

Ethernet Software Features

Management

IPv4/IPv6
Note: IPv6 is available for L2 models only.
Flow control
Back Pressure Flow Control
DHCP Server/Client
Note: DHCP Server/Client is available for L2 models only.
ARP
RARP
LLDP
Linkup Delay
SMTP
SNMP Trap
SNMP Inform
SNMPv1/v2c/v3
RMON
TFTP
SFTP
HTTP
HTTPS
Telnet
Syslog
Private MIB
Fiber check
DHCP Relay Agent (Option 82)
Port Mirroring (SPAN, RSPAN)

Filter

GMRP
GVRP
GARP
802.1Q
IGMP Snooping v1/v2/v3
IGMP Querier

Redundancy Protocols

STP
RSTP
Turbo Ring v2
Turbo Chain
Ring Coupling
MRP
Link Aggregation
Network Loop Protection
MSTP
L3 Models: MRP Interconnection, Multiple Dual Homing, Multiple Network Coupling, Tracking

Routing Redundancy

L3 models: VRRP

Security

Broadcast storm protection
Rate Limit
Access control list
Static port lock
Sticky MAC
HTTPS/SSL
SSH
RADIUS
TACACS+
Login and password policy
Secure boot
MAC authentication bypass
Trust access control
Dynamic ARP Inspection
DHCP Snooping
IP Source Guard
L3 models: IEEE 802.1AE MAC security

Time Management

SNTP
IEEE 1588v2 PTP (hardware-based)
Supported power profiles: IEEE 1588 Default 2008, IEC 61850-9-3-2016, IEEE C37.238-2017

NTP Server/Client
NTP Authentication

Protocols

IPv4/IPv6
Note: IPv6 is available for L2 models only.
TCP/IP
UDP
ICMP
ARP
RARP
TFTP
DNS
NTP Client
DHCP Server
Note: DHCP Server is available for L2 models only.
DHCP Client
Note: DHCP Client is available for L2 models only.
802.1X
QoS
HTTPS
HTTP
Telnet
SMTP
SNMPv1/v2c/v3
RMON
Syslog
L3 models: VLAN Assignment

Industrial Protocols

EtherNet/IP
Modbus TCP
L3 models: PROFINET

Unicast Routing

L3 models: OSPF, Static Route

Multicast Routing

L3 models: PIM-DM, PIM-SM, Multicast Local Route

MIB

P-BRIDGE MIB
Q-BRIDGE MIB
IEEE8021-SPANNING-TREE-MIB
IEEE8021-PAE-MIB
IEEE8023-LAG-MIB
LLDP-EXT-DOT1-MIB
LLDP-EXT-DOT3-MIB
SNMPv2-MIB
RMON MIB Groups 1, 2, 3, 9

Power Substation

MMS
1588 PTP Power Profile IEC 61850-9-3
1588 PTP Power Profile C37.238-2017

L3 models: GOOSE Check

Switch Properties

IGMP Groups

1024

Jumbo Frame Size

9.216 KB

MAC Table Size

16 K

Max. No. of VLANs

256

Packet Buffer Size

1.5 Mbits

Priority Queues

8

VLAN ID Range

VID 1 to 4094

USB Interface

Storage Port

USB Type A

MicroSD Interface

Storage Port

MicroSD card

LED Indicators

LED Indicators

PWR1, PWR2, STATE, FAULT, MSTR/HEAD, CPLR/TAIL, SYNC, EPS

Serial Interface

Console Port

RS-232 (RJ45)

Power Parameters

Input Voltage

RKS-G4028-LV models: 24/48 VDC
RKS-G4028-2LV models: 24/48 VDC (redundant power supplies)
RKS-G4028-HV models: 110/220 VAC, 110/220 VDC
RKS-G4028-2HV models: 110/220 VAC, 110/220 VDC (redundant power supplies)
PoE models: 48 VDC (for the PoE system)

Total PoE Power Budget

300 W

Max. PoE Power Output per Port

IEEE 802.3af: 15.4 W
IEEE 802.3at: 30 W
IEEE 802.3bt: 90 W

Operating Voltage

RKS-G4028-LV/2LV models: 18 to 72 VDC
RKS-G4028-HV/2HV models: 88 to 300 VDC, 85 to 264 VAC
PoE models: 46 to 57 VDC (for the PoE system)

Overload Current Protection

Supported

Reverse Polarity Protection

Supported

Input Current

RKS-G4028-LV/2LV models:
Max. 2.53 A @ 24 VDC
Max. 1.25 A @ 48 VDC

RKS-G4028-HV/2HV models:
Max. 0.55 A @ 110 VDC
Max. 0.29 A @ 220 VDC
Max. 1.01 A @ 110 VAC
Max. 0.62 A @ 220 VAC

EPS (PoE models only):
Max. 7.50 A @ 48 VDC

Power Consumption (Max.)

RKS-G4028-LV/2LV models:
Max. 60.72 W @ 24 VDC
Max. 60 W @ 48 VDC

RKS-G4028-HV/2HV models:
Max. 60.5 W @ 110 VDC
Max. 63.8 W @ 220 VDC
Max. 62.2 W @ 110 VAC
Max. 64.1 W @ 220 VAC

Note: These are the maximum power consumption ratings for the device with the maximum number of modules installed

Physical Characteristics

IP Rating

IP30

Dimensions

440 x 44 x 300 mm (17.32 x 1.37 x 11.81 in)

Weight

RKS-G4028-LV/HV models: 4900 g (10.80 lb)
RKS-G4028-2LV/2HV models: 5200 g (11.46 lb)
RKS-G4028-PoE-LV/HV models: 5000 g (11.02 lb)
RKS-G4028-PoE-2LV/2HV models: 5300 g (11.68 lb)

Installation

Rack mounting

Environmental Limits

Operating Temperature

-40 to 75°C (-40 to 167°F)

Storage Temperature (package included)

-40 to 85°C (-40 to 185°F)

Ambient Relative Humidity

5 to 95% (non-condensing)

Standards and Certifications

Safety

EN IEC 62368-1
IEC 60950-1
IEC 62368-1
UL 61010
UL 62368-1

EMC

EN 55032/35
EN 61000-6-2/-6-4

EMI

CISPR 32, FCC Part 15B Class A

Traffic Control

NEMA TS2

EMS

IEC 61000-4-2 ESD: Contact: 8 kV; Air: 15 kV
IEC 61000-4-3 RS: 80 MHz to 1 GHz: 35 V/m
IEC 61000-4-4 EFT: Power: 4 kV; Signal: 4 kV
IEC 61000-4-5 Surge: Power: 4 kV; Signal: 4 kV
IEC 61000-4-6 CS: 10 V
IEC 61000-4-8 PFMF
IEC 61000-4-11 Voltage Dips & Interruptions

Power Substation

IEC 61850-3
IEEE 1613

Railway

EN 50121-4

Freefall

IEC 60068-2-32

Shock

IEC 60068-2-27

Vibration

IEC 60068-2-6

Industrial Cybersecurity

IEC 62443-4-1
IEC 62443-4-2

MTBF

Time

RKS-G4028-4GT-HV models: 572,888 hours
RKS-G4028-4GT-2HV models: 518,894 hours
RKS-G4028-4GS-HV models: 529,925 hours
RKS-G4028-4GS-2HV models: 483,436 hours
RKS-G4028-4GT-LV models: 548,589 hours
RKS-G4028-4GT-2LV models: 479,574 hours
RKS-G4028-4GS-LV models: 508,639 hours
RKS-G4028-4GS-2LV models: 449,160 hours
RKS-G4028-PoE-4GS-HV models: 508,190 hours
RKS-G4028-PoE-4GS-2HV models: 465,282 hours
RKS-G4028-PoE-4GS-LV models: 488,598 hours
RKS-G4028-PoE-4GS-2LV models: 433,472 hours