Unmanaged Industrial Ethernet Switch - Industrial Networking Solution

Unmanaged Industrial Ethernet Switch – SDI-862

Unmanaged Industrial Ethernet Switch_480px_SDI-862

Unmanaged Industrial Ethernet Switch_480px_SDI-862

The Unmanaged Industrial Ethernet Switch SDI-862 is a simple and cost effective unmanaged fibre switch suitable for use in a wide range of factory and building automation applications. Two models are available – The SC2 for use on up to 2 km (1.24 mi) of multimode fibre and the SC30 for single-mode applications to 30 km (18.6 mi). A high speed switch core ensures full speed on all ports and transparency to any Ethernet protocol.
The westermo Unmanaged Ethernet Switch SDI-862  unit is designed for DIN rail mounting into industrial cabinets allowing simple Ethernet connections to be established between PLCs, I/O units, drives, inverters and HMIs. The dual power input makes the unit ideal in these types of application and the fault relay can be connected to an I/O unit to provide simple network management.
Designed to work in industrial environments with its IP 31 Aluminium housing and a wide temperature specification the Westermo Ethernet Switch SDI-862 is an ideal automation solution.
The Westermo Unmanaged Industrial Ethernet Switch SDI-862 is so easy to use, simply connect power to the screw terminals and plug in your RJ-45 cables. If you plan to use the fault contacts a DIP switch allows configuration whilst LEDs provide simple diagnostics if required. A broadcast storm filter even helps out if a loop is created by mistake.

back to industrial ethernet switch

 6 10/100 TX Ports with Auto MDI/MDI-X
2 100 FX, Multi-mode/Single-mode
Compact size with full power redundancy
2.0 Gbit/s Switch Fabric
QoS for packet forwarding prioritisation
Broadcast storm packet filtering
Port and power event alarm
IP-31 aluminum alloy case
DIN-Rail mount
Dual power input DC 10 ~ 48 V
AC 1.5 KV Hi-pot isolation protection

• Technology

IEEE802.3 10Base-T, IEEE802.3u 100Base-TX, 100Base-FX,
IEEE802.3x Flow Control, IEEE802.1p Class of Service,
IEEE802.1Q Quality of Service

Switch Technology Store and forward technology and with 2 Gbit/s switch fabric
• System Performance
Aggregate System Throughput 1.49 Mpps
MAC Address 2K MAC
Packet Buffer 448 Kbits
Transfer Packet Size 14.880 pps for Ethernet 10Base-T
148.800 pps for Fast Ethernet
Packet size from 64~1552 Bytes ( Long Packet forwarding ability)
Broadcast storm control Default enabled
Traffic threshold: 200 packets / Sec. @ 100 Mbit/s; 20 packets / Sec. @ 10 Mbit/s
Class of Service Provides 2 packet forwarding Queues:
High Queue (4 ~ 7), Low Queue (0 ~ 3)
Quality of Service Default Enabled. Supports VLAN tag priority and IPv4 packet precedence
Event alarm relay Provides port and power event alarm;
Enabled by 9-PIN Dip-switch
• Interface
Number of Ports

6 x 10/100 Base-TX with Auto MDI/MDI-X, Auto-Negotiation function
2 100 Mbit/s Fibre in multi-mode (Westermo SDI-862-MM-SC2) or single-mode
(Westermo SDI-862-SM-SC30)


10/100 Base-TX: RJ-45, 100 Mbit/s Fibre: SC, Power: Terminal Block
Alarm relay: Terminal block connector with 1 A @ DC 24 V carry ability


CAT-3, CAT-4, CAT-5 or CAT-5e unshielded twisted pair or shielded twisted paircable. The Link distance is 100 meters in maximum.
Westermo SDI-862-MM-SC2: multi-mode optical Fibre, 50 ~ 62.5/125 μm, 2 km
Westermo SDI-862-SM-SC30: single-mode optical Fibre, 8 ~ 10/125 μm, 30 km

Fibre Transceiver

Westermo SDI-862-MM-SC2
Link Distance: 2 km (Max.), Wave-length: 1310 nm, Min Tx Power: -20 dBm
Max Tx Power: –14 dBm, Min Rx Sensitivity: 0 dBm, Max Rx Sensitivity: –31dBmLink budget: 11 dBm

Westermo SDI-862-SM-SC15
Link Distance: 30 km (Max.), Wave-length: 1310 nm, Min Tx Power: –15 dBm,
Max Tx Power: –8 dBm, Min Rx Sensitivity: 0 dBm, Max Rx Sensitivity: –34 dBm,
Link budget: 19 dBm

Diagnostic LED

Per system:
Power (Green) x2
10/100TX port: 10/100TX port: Link (Green on) / Activity (Green blinking)
100 Mbit/s Link (Yellow on)/ 10 Mbit/s Link (Yellow off)
100 Mbit/s Fibre: Link (Green on) / Activity (Green blinking)
Alarm: Port / Power Event (Red on)

• Power Requirements
System Power

2 Power inputs with redundancy and polarity reverse protection.
Voltage: DC 24 V (10 ~ 48 V)

Consumption 12 Watts @ DC 24 V
• Mechanical
Installation DIN-Rail mount
Case IP-31 grade aluminum metal case
Dimension 120 mm (H) x 55 mm (W) x 108 mm (D) ( without DIN rail clip)

0.97 kg with package
0.54 kg without package

• Environmental
Operating Temperature –25 ~ 70ºC
Operating Humidity 0% ~ 95%, (non-condensing)
Storage Temperature –40 ~ 85ºC
Hi-Pot 0% ~ 95%, (non-condensing)
• Regulatory Approvals
EMI FCC Class A, CE/EN55022

EN61000-4-2, EN61000-4-3, EN61000-4-4, EN61000-4-5, EN61000-4-6,

EN61000-4-8, EN61000-4-11

Shock IEC60068-2-27
Vibration IEC60068-2-6
Free Fall IEC60068-2-32


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