Diverse Hardware Infrastructure
Modbus Gateway supports the four most commonly used communication standards, RS-232/485/422, and Ethernet. The ease-of-use configuration utility provided with Modbus Gateway can quickly select the hardware interface, and easily switch to the existing communication infrastructure. You could set it up via Web Browser, Serial Console, Telnet Console, Windows Utility or through the LCM display in front of the device. Industrial EMC protection makes MB5908 ready for every mission.

Security and Redundancy
MB5908 embeds OpenVPN and IPsec VPN, that allows you to tunnel your data securely throught the internet and prevent unauthorized control of your Serial Devices by malicious people. The integrated Rapid Spanning Tree Protocol (RSTP), allows you to add a backup Ethernet link in the event the primary one fails.

Switching between Modbus Protocols
Modbus Gateway supports the standard Modbus protocol and is capable of converting any Modbus protocols between Modbus TCP, Modbus RTU, and Modbus ASCII for all supported hardware interfaces. All of this, in bi-directional mode: Ethernet and Serial ends can selected to be either master or slave.

Modbus ID Routing
Modbus Gateway supports various types of hardware communication interfaces, Modbus protocol conversion, and Modbus ID routing. Therefore the Modbus Gateway can integrate your existing and complex Modbus hardware configuration into a simple network that can be easily managed.

Modbus Data Concentrator
The Modbus Data Concentrator performs pre-defined Modbus commands to read/write data from the slave devices via serial ports. It mirrors slave device data to its own memory. Therefore, requesting masters can receive response in a shorter period, achieving better overall efficiency.





Regular Modbus gateway
 

Modbus Concentrator
     

Network Interface
Speed	IEEE 802.3 10BaseT IEEE 802.3u 100BaseT(X)
LAN Mode	Dual Subnets or Network Redundancy
Connector ports	2x 10/100BASE-T(X) RJ-45

Serial Interface
Connector	RJ45 RS-232/422/485 software selectable (-N models) or RJ45 Isolated RS-422/485 software selectable (-SiS models)
Ports	8
Baud Rate	1,200 ~ 921,600 bps software selectable
Data Bits	5, 6, 7, 8 software selectable
Stop Bits	1, 2 software selectable
Parity	None, Odd, Even, Space, Mark
Flow Control	None, Xon/Xoff, RTS/CTS (RS-232 only)
Isolation	2.5 kV (Sis versions only)

Software
Protocols	IPv4, ICMP, TCP, UDP, DHCP Client, SNMPv1,v2c,v3, HTTP, HTTPS, SMP/TLS, Telnet, RFC2217, RSTP, Security through OpenVPN and IPsec (host-to-host or host-to-side) with up to 37.9Mbps VPN throughput, and PPTP
Configuration	Atop Management Utility, Web UI, Telnet, Serial Console, LCM Display
VirtualCOM	Windows/Linux redirection software
Modbus Gateway Supported Modes	Ethernet: Modbus TCP Server/Client(or VCOM); Serial: Modbus RTU/ASCII (master/slave)
Maximum number of Modbus clients/slaves	Modbus TCP: Maximum 16 clients; Maximum 32 slave connections
Modbus concentrator	Optional - please ask your ATOP Representative
Modbus redundant concentrator	Optional - please ask your ATOP Representative

Power	Value
Rated Supply Voltage	DC version: 24-48VDC; US-EU version: 100-240 VAC (EU or US Plug)
Input Voltage Range	DC version: 24-48VDC; US-EU version: 90-264 VAC (EU or US Plug)
Input Current	DC version: 0.54 A @24VDC; US-EU version: 0.21A@100VAC
Power Consumption	Approximately 21 W (Max)
Connector	DC version: 5.08mm 3-pin Lockable Terminal Block EU-US version: IEC 60320-1 C14 AC Power Inlet
Power Redundancy	No
Reverse Polarity Protection	Yes (DC version only)
Relay Output	Yes (1)

Physical Characteristics	Value
Housing	IP30, SPCC housing
Dimension (W x H x D)	436 mm x 43.5 mm x 200 mm
Weight	3,000g (8-port version); 3,200 g (16-port version)
Installation	19’’ Rack-Mount (Kit included)
Reset Button	Yes

Environmental Limits
Operating Temperature	-20°C~70°C (-4°F~158°F)
Storage Temperature	-40°C~85°C (-40°F~185°F)
Ambient Relative Humidity	5%~95%, 55°C (Non-condensing)

Certification	Standard
Safety	EN60950-1:2006; EN62368-1
EMC	FCC Part 15, Subpart B, Class A EN55032, Class A, EN 61000-3-2, EN 61000-3-3, EN 55024

Standard	Item	Test	Value	Level
IEC 61000-4-2	ESD	Contact Discharge Air Discharge Contact Discharge Air Discharge	±8kV (For AC Version) ±15kV (For AC Version) ±6kV (For DC Version) ±8kV (For DC Version)	4 4 3 3
IEC 61000-4-3	RS	Radiated (enclosure)	10 V/m	3
IEC 61000-4-4	EFT	AC Power Port DC Power Port Signal Port	±4.0KV ±4.0KV ±2.0KV	4 4 3
IEC 61000-4-5	Surge	AC Power Port AC Power Port DC Power Port DC Power Port Signal Port	Line-to Line±2.0KV Line-to Earth±4.0KV Line-to Line±1.0KV Line-to Earth±2.0KV Line-to Earth±2.0KV	4 4 3 3 4
IEC 61000-4-6	CS	AC Power Port DC Power Port Signal Port	10 V rms 10 V rms 10 V rms	3 3 3
IEC 61000-4-8	PFMF	Enclosure	1 A/m	3
IEC 61000-4-11	DIP	AC Power Port	30% Reduction (Voltage Dips), 25/30 Cycle >95% Reduction(Voltage Dips), 0.5 period 100% Reduction (Voltage Interruption) : 250/300 Cycle	-

Certification	Standard
Shock Drop (Freefall) /Vibration	MIL-STD-810G Method 516.7 MIL-STD-810G Method 516.7 / MIL-STD-810G Method 514.7
RoHS II	Yes
MTBF (MIL-HDBK-217F)	MB5908-DC: 22.74 years; MB5916-US/EU: 13.95 years; MB5908-SiS-DC: 19.00 years; MB5908-SiS-US/EU: 19.03 years MB5916-SiS-DC: 13.38 years; MB5916-SiS-US/EU: 13.38 years
Warranty	5 Years

MODEL NAME	PART NUMBER	DESCRIPTION	ETHERNET PORTS	SERIAL PORTS
MB5908-DC-CT	Contact Headquarter	8-Port Modbus Concentrator, RJ45 serial, RS- 232/422/485, 24-48 VDC power input	2 (RJ45)	8 (RJ45)
MB5908-EU-CT		8-Port Modbus Concentrator, RJ45 serial, RS- 232/422/485, 100~240 VAC power input, EU plug	2 (RJ45)	8 (RJ45)
MB5908-US-CT		8-Port Modbus Concentrator, RJ45 serial, RS- 232/422/485, 100~240 VAC power input, US Plug	2 (RJ45)	8 (RJ45)
MB5908-SiS-DC-CT		8-Port Modbus Concentrator, RJ45 serial, RS- 422/485, 2.5KV Isolation, 24-48 VDC power input	2 (RJ45)	8 (RJ45)
MB5908-SiS-EU-CT		8-Port Modbus Concentrator, RJ45 serial, RS-232, 2.5KV isol., 100~240 VAC pwr, EU plug	2 (RJ45)	8 (RJ45)
MB5908-SiS-US-CT		8-Port Modbus Concentrator, RJ45 serial, RS-232, 2.5KV isol., 100~240 VAC pwr, US plug	2 (RJ45)	8 (RJ45)

MODEL NAME	PART NUMBER	DESCRIPTION
SDR-75-24	50500752240001G	75W/3.2A DIN-Rail 24VDC power supply with 88~264VAC / 124~370VDC input
AD17-24C (US-Y)	50500151240002G	Y-Type power adaptor,100-240VAC input, 0.6A @ 24VDC output, US plug
AD17-24D (EU-Y)	50500151240012G	Y-Type power adaptor,100-240VAC input, 0.6A @ 24VDC output, EU plug
GDC-120	59906861G	120mm copper woven grounding cable
CBL-RJ45(8P)-DB9(M)-90	50891781G	RJ45 to DB9 Male Cable, 90cm
CBL-RJ45(8P)-DB9(M)-200	50891951G	RJ45 to DB9 Male Cable, 200cm
CBL-RJ45(8P)-DB9(F)-90	50891791G	RJ45 to DB9 Female Cable, 90cm
CBL-RJ45(8P)-DB9(F)-90-C	50891971G	RJ45 to DB9 Female Cross Over Cable, 90cm
CBL-RJ45(8)-DB9(F)-200-C	50891961G	RJ45 to DB9 Female Cross Over Cable, 200cm
RMK-718-Black	70100000000040G	Rack Mount Mounting-Kit, Black
Power Cable (US)	50801041G	6 feet Power Cable, US
Power Cable (EU)	50801051G	6 feet Power Cable, EU
Fuse	50709441G	Fuse

Datasheet

VERSION	NAME	TIME	SIZE	DOWNLOAD
v1.2	Datasheet EN	2023-11-01	385.89 KB
v1.1	Datasheet EN	2023-08-25	432.96 KB
1 older version

Hardware Installation Guide

VERSION	NAME	TIME	SIZE	DOWNLOAD
v2.0	SE5908/MB5908/PG5908 Hardware Installation Guide	2019-06-06	1.87 MB

Manual

VERSION	NAME	TIME	SIZE	DOWNLOAD
v1.5	MB59XX CT User Manual	2023-08-17	5.44 MB

Firmware

VERSION	NAME	TIME	SIZE	DOWNLOAD
v1.71	MB59xx CT Firmware	2023-08-17	16.30 MB

Test reports

VERSION	NAME	TIME	SIZE	DOWNLOAD
	EN 62368-1(AC models)	2022-11-08	3.91 MB
	EN 62368-1(DC models)	2022-11-08	3.38 MB