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Metal industrial switch with four RJ45 ports and two SC fiber ports, wall-mountable, IP30 rated

PLANET

PLANET ISW-621TS15 4+2 100FX Single-mode Industrial Network Switch 15 km

SKU CH-9VT0-95A17 MPN ISW-621TS15

Industrial unmanaged switch with four RJ-45 ports and two single-mode SC fibre ports reaching 15 km, operating from -40 to 75 °C

  • Product formatWall Mountable
  • Supported standardsIEEE 802.3 Ethernet, 10Base-T IEEE 802.3u Fast Ethernet, 100
  • Management typeUnmanaged
  • Main ports4-port 10/100Base-TX RJ-45 with auto MDI/MDI-X function 2-po
  • MAC table size2K
  • Switching modeStore and Forward
  • Wide temperature operation from -40 to 75 degrees Celsius
  • 15 km single-mode fiber reach for long-distance links
  • Redundant 12 to 48V DC power with reverse polarity protection
  • Unmanaged 4-port 10/100 RJ-45 plus 2-port 100Base-FX
  • IP30 metal housing for industrial environments

Industrial Fast Ethernet switch

The PLANET ISW-621TS15 is an unmanaged switch built for harsh industrial environments. It provides four 10/100Base-TX RJ-45 ports with auto MDI/MDI-X and two 100Base-FX single-mode SC interfaces rated for up to 15 km. The unit supports IEEE 802.3, 802.3u and 802.3x standards with store-and-forward switching and a 1.2 Gbps backplane. It is suited for transportation, manufacturing and surveillance networks that need extended fiber reach.

Fanless metal chassis rated for -40 to 75 °C

The IP30 metal enclosure operates silently without fans across a wide temperature range from -40 to 75 degrees Celsius. Maximum power dissipation is 16 watts or 54 BTU per hour. Redundant 12 to 48 V DC inputs include polarity reverse protection to maintain uptime if one feed fails. Humidity tolerance spans 5 to 90 percent non-condensing in both operating and storage conditions.

Wall-mountable design

The compact wall-mountable format measures 1.32 by 5.31 by 3.82 inches and weighs 0.97 lb, fitting into tight cabinets or DIN-rail setups with an optional bracket. Dual DC power terminals accept 12 to 48 V, removing the need for an AC outlet at the device. Auto-negotiation on copper ports and fixed 100 Mbps fiber ports simplify cabling in legacy and new installations alike. Builds needing Gigabit speeds or managed features such as VLANs or SNMP must look elsewhere.

How it compares

Measured against everything we stock in Ethernet & PoE Switches, at today’s prices. Recalculated every night.

Price $97.99
Cheaper than about 79% of the 2,759 comparable items (median $482.99).

Specifications

Product
Brand namePLANET
Model nameISW-621TS15
Memory
Buffer size1 MB
Connectivity
Supported standardsIEEE 802.3 Ethernet, 10Base-T
IEEE 802.3u Fast Ethernet, 100Base-TX, 100Base-FX
IEEE 802.3x full-duplex Flow Control
Management typeUnmanaged
MAC table size2K
Switching modeStore and Forward
Ports & slots
Main ports4-port 10/100Base-TX RJ-45 with auto MDI/MDI-X function
2-port 100Base-FX interface on
Power
Power detailsRequirements:
12 to 48 V DC
Redundant power with polarity reverse protection function
Power Consumption / Dissipation: Max. 16 W / 54 BTU
Size & build
Product dimensions1.32 in × 5.31 in × 3.82 in
Product weight0.97 lb (0.44 kg)
Shipping weight0.44 kg
Package size136 × 98 × 32 mm
Environment & compliance
Temperature rangeOperating Temperature: -40 to 75 degree Celsius
Storage Temperature: -40 to 85 degree Celsius
Humidity rangeOperating Humidity: 5% ~ 90%
Storage Humidity: 5% ~ 90% non-condensing
More details
Product formatWall Mountable

Questions about this item

How do I wall-mount the ISW-621TS15 and which power wiring step is often missed?

Use the built-in wall-mount brackets; the step often missed is connecting both 12~48V DC inputs for redundant power and observing polarity, as reverse protection only prevents damage, it does not correct reversed wires.

What component will need replacement first in a -40~75 °C cabinet?

The 1 MB buffer memory and 2K MAC table are solid-state; the first replacement is typically the SC single-mode fibre patch cords if they are bent beyond spec or contaminated, not the switch itself.

At what sustained load does the 1.2 Gbps backplane become the bottleneck?

With four 100 Mbps copper ports and two 100 Mbps FX ports, full wire-speed on all six ports simultaneously reaches 1.2 Gbps, so the backplane limit appears first when every port runs at 100 Mbps full-duplex continuously.

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