D-Link DIS-300G-12SW Industrial Gigabit Managed Switch
PRODUCT DESCRIPTION
D-Link DIS-300G-12SW Industrial Gigabit Managed Switch with SFP Slots (DIS-300G-12SW) - 5 Years Local Warranty
Compact Managed Switching for Harsh Sites
The D-Link DIS-300G-12SW is an industrial Gigabit managed switch with 8 x 10/100/1000BASE-T ports and 4 x 100/1000BASE SFP slots, giving plenty of fibre connectivity for ring and long-distance links in a DIN-rail form factor.
Built to Survive Heat, Cold and Vibration
A fanless IP30 housing operates from -40 to +75 °C and is tested for vibration (IEC 60068-2-6), shock (IEC 60068-2-27) and free fall (IEC 60068-2-32), with NEMA-TS2 certification for traffic-control cabinets.
High Availability
Wide-range 12–58 VDC redundant input terminals with reverse power protection, an alarm relay output, STP/RSTP/MSTP and D-Link's fast failover protection ring (link loss recovery under 20 ms) keep critical links running.
Familiar Management
Configure it through an industrial CLI, web GUI, SNMP v1/v2c/v3 or Telnet.
Need help choosing? Email sales@sourceit.com.sg with your port, fibre and power requirements and we will recommend the right model.
D-Link DIS-300G-12SW Datasheet — Technical Specifications
General
| Product Name | D-Link DIS-300G-12SW Industrial Gigabit Managed Switch with SFP Slots |
| Part Number | DIS-300G-12SW |
| Series | DIS-300G Industrial Gigabit Managed Switches |
| Local Warranty (Singapore) | 5 years, supplied by SourceIT with a GST invoice |
Interfaces
| Copper Ports | 8 x 10/100/1000BASE-T |
| SFP Slots | 4 x 100/1000BASE SFP |
| PoE | None |
| Alarm | Relay output, 0.5 A @ 24 VDC |
Performance
| Switching Engine | L2 wire-speed / non-blocking |
| MAC Address Table | 8K |
| Jumbo Frames | 9K bytes |
Power
| Input Voltage | 12–58 VDC |
| Input Protection | Redundant input terminals, reverse power protection |
| Power Consumption | Max 17 W |
Physical & Environmental
| Dimensions | 61 x 154 x 109 mm |
| Weight | 1.086 kg |
| Ingress Protection | IP30, fanless |
| Mounting | DIN-rail, wall |
| Operating Temperature | -40 to +75 °C |
| Storage Temperature | -40 to +85 °C |
| Humidity | 5 to 95% RH |
| MTBF | > 25 years |
Certifications
| Safety / Industry | UL 60950-1, CE, FCC, NEMA-TS2 |
| EMC | FCC Part 15, EN 61000-6-2, EN 61000-6-4, EN 61000-4-2/-3/-4/-5/-6 |
| Mechanical | Vibration IEC 60068-2-6; Shock IEC 60068-2-27; Free Fall IEC 60068-2-32 |
| Environmental | RoHS, WEEE |
Compatibility & Software Support
Management
Industrial CLI, web-based management, SNMP v1/v2c/v3 and Telnet. D-Link's software feature groups: bridge, VLANs and protocols; multicast; traffic management and QoS; security; and network redundancy (IEEE 802.1D STP, 802.1w RSTP, 802.1s MSTP and fast failover protection rings with link loss recovery under 20 ms).
Optional Accessories (per D-Link)
D-Link industrial DIN-rail power supplies DIS-H30-24, DIS-H60-24, DIS-N240-48 and DIS-N480-48; industrial SFP modules DIS-S301SX, DIS-S302SX and DIS-S310LX.
Typical Use
Fibre ring and aggregation nodes in factories, utilities, transport and outdoor cabinets.
Package Contents & DIS-300G Ordering Information
DIS-300G Models
| Model | Ports | PoE Budget |
| DIS-300G-8PSW | 4 x GE PoE + 2 x GE + 2 x SFP | 120 W |
| DIS-300G-14PSW | 8 x GE PoE + 2 x GE + 4 x SFP | 240 W |
| DIS-300G-12SW (this listing) | 8 x GE + 4 x SFP | — |
Package contents are not listed in D-Link's datasheet — ask us to confirm the DIN-rail kit and terminal blocks. Power supply and SFP modules are sold separately.
Datasheet & Downloads
| D-Link datasheet | DIS-300G Series Datasheet (PDF) |
| D-Link product page | DIS-300G-12SW on dlink.com |
Need a PDF sent directly? Email sales@sourceit.com.sg quoting DIS-300G-12SW.
Frequently Asked Questions — D-Link DIS-300G-12SW
Does it provide PoE?
No. For PoE choose the DIS-300G-8PSW (120 W) or DIS-300G-14PSW (240 W).
What power input does it take?
12–58 VDC on redundant input terminals, max 17 W. Use a D-Link industrial PSU on AC sites.
What temperatures can it handle?
-40 to +75 °C operating, in a fanless IP30 housing.
Does it support ring redundancy?
Yes, fast failover protection rings with link loss recovery under 20 ms, plus STP, RSTP and MSTP.
What warranty do I get?
5 years local warranty in Singapore, supplied by SourceIT with a GST invoice.
