Product Overview
(1) Core positioning and design philosophy
A fully gigabit reinforced switch designed specifically for industrial automation scenarios, meeting the high reliability, long-term stability, and flexible configuration requirements in extreme industrial environments. Following the IEEE 802.3 standard, supporting the construction of switched industrial Ethernet networks, fanless design reduces the risk of mechanical failures, and adapts to harsh working conditions such as vibration, wide temperature range, and electromagnetic interference.
(2) Model variants and core differences
The series includes four basic models, which combine different characteristics (port position, PoE function, temperature range, power supply type, etc.) through product names. The specific differences are as follows:
Model Port Position PoE Support Core Configuration Special Design
MAR1040 front-end does not have 16 gigabit combination ports, optional redundant power supply basic model, suitable for conventional industrial scenarios
The MAR1042 front-end has 16 Gigabit Ethernet ports (4 PoE ports) and dual power supply units (including PoE power supply) that support PoE terminal power supply for IP phones, cameras, and other devices
MAR1140 does not have 16 gigabit combination ports in the backend, but has an additional Fast Ethernet diagnostic port in the frontend. Optional redundant power supply ports can be installed in the rear for easy wiring management, and the diagnostic port simplifies maintenance
MAR1142 has 16 Gigabit Ethernet ports (4 PoE ports) in the backend (IEEE 802.3af), an additional Fast Ethernet diagnostic port in the frontend, and dual power supply units that combine port placement and PoE functionality, making it suitable for complex installation scenarios
(3) Core functional characteristics
Port configuration: 16 Gigabit combo ports, each port can be connected to either twisted pair (RJ45 socket, supporting 10/100/1000 Mbit/s) or optical module (SFP slot, supporting 100/1000 Mbit/s). After inserting the SFP optical module, the corresponding RJ45 port will be automatically disabled.
PoE function: Only supported by MAR1042 and MAR1142, compliant with IEEE 802.3af standard. The four PoE ports are the first four ports of the device (Port 1-4), with a maximum output power of 15.4W per port. It provides phantom power through signal twisted pair cable
Technical parameter details
(1) Physical and weight parameters
Project specifications
Dimensions (W × H × D) without bracket: 448mm × 345mm × 44mm (17.64in × 13.58in × 1.73in); With bracket: 463mm × 345mm × 44mm (18.23in × 13.58in × 1.73in)
Weight MAR1040/MAR1140: maximum 4.2kg (9.3lb); Equipped with redundant power supply: maximum 4.4kg (9.7lb); MAR1042/MAR1142 (PoE): Maximum 4.6kg (10.2lb)
Protection level IP30
Laser/LED protection Class 1 (compliant with IEC 60825-1:2014)
(2) Power supply and electrical parameters
Power supply type, rated voltage range, tolerance range, backup fuse, peak surge current, power-off holding time
L-type (DC) 24-48VDC 18-60VDC 6.3A, slow melting 15A>10ms (20.4VDC)
M-type (AC) 100-240VAC, 50/60Hz 90-265VAC, 47-63Hz 2.5A, slow melting 14A>20ms (230VAC)
M-type (DC) 110-250VDC 77-300VDC 2.5A, slow melting 14A-
Signal contact (non hazardous environment) Umax 230VAC/30VDC, Imax 2A; Umax 125VDC,Imax 0.2A; Umax 250VDC,Imax 0.1A
Signal contact (hazardous environment) Vmax 30V, Imax 90mA, Ci 50pF, Li 2 μ H
(3) Network performance parameters
Port type, speed support, transmission standard, maximum transmission distance
Twisted pair port (RJ45) 10/100/1000 Mbit/s IEEE 802.3 10BASE-T/100BASE-TX/1000BASE-T 100m (Cat5e cable)
Optical port (SFP, 100M) 100 Mbit/s IEEE 802.3 100BASE-FX multimode (50/125 μ m): 5km; Single mode: 25km; Long distance (LH): 140km
Optical port (SFP, 1000M) 1000 Mbit/s IEEE 802.3 1000BASE-SX/LX/LH multimode (50/125 μ m): 0.55km (SX)/1.5km (MX); Single mode: 20km (LX)/128km (LH+)
(4) Electromagnetic compatibility (EMC) parameters
Test Project Standard Test Level
Electrostatic discharge IEC/EN 61000-4-2 Contact discharge ± 8kV, air discharge ± 15kV
Electromagnetic radiation immunity IEC/EN 61000-4-3 80MHz-2700MHz, 20V/m
Fast transient pulse group IEC/EN 61000-4-4 power/data line ± 4kV
Voltage surge IEC/EN 61000-4-5 power line ± 2kV (line to ground)/± 1kV (line to line) (AC); ± 4kV (line to ground)/± 2kV (line to line) (DC)
Conducted interference IEC/EN 61000-4-6 150kHz-80MHz, ± 4kV (line ground), 10V
Radiation emission EN 55032/FCC 47 CFR Part 15 Class A

Maintenance, disassembly, and troubleshooting
(1) Key points of daily maintenance
Regular inspection:
Environmental inspection: Confirm that the installation environment temperature and humidity meet the requirements, and there is no dust accumulation.
Equipment inspection: The ventilation duct is unobstructed, the LED indicator light is normal, and the casing has no damage or signs of overheating.
Cable inspection: The cable connection is firm, without wear or aging, and the stress relief device is effective.
Relay inspection: Regularly check the contact resistance of the relay according to the switching frequency to ensure that the switch function is normal.
Email:wang@kongjiangauto.com