
ISW2000-4T2GP-POE-IN
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The ISW2000-4T2GP-POE-IN is an unmanaged industrial PoE Ethernet switch with 4 × 10/100Mbps RJ45 PoE ports (IEEE 802.3af/at, up to 30 W per port) and 2 × 1000Mbps SFP slots for a gigabit fiber uplink. It switches at 4.8 Gbps with 3.57 Mpps forwarding and store-and-forward transfer, and offers plug-and-play VLAN or CCTV (10 Mbps, up to 250 m) working modes with no configuration required. A -30 °C to 65 °C operating range with ±6/8 kV ESD and ±2/4 kV surge protection suits harsh field cabinets.
Is This the Right Fit?
Six real deployment scenarios matched to this model's actual datasheet specifications.
- Access ports are Fast Ethernet (10/100Mbps), not Gigabit — if downlink devices need gigabit throughput, choose a GE-port model instead.
- Unmanaged with only VLAN and CCTV working modes — no SNMP, no per-VLAN tagging, no inter-VLAN routing; choose a managed switch if you need remote monitoring or fine-grained VLAN control.
- Device max power is 75 W — running all four ports at the full 30 W PoE+ ceiling (120 W combined) exceeds the budget, so check actual camera draw before over-subscribing all ports.
Key Features
- 4 × 10/100Mbps RJ45 PoE ports + 2 × 1000Mbps SFP slots
- PoE per IEEE 802.3af/at — up to 30 W per port; device max power 75 W
- Two plug-and-play working modes: VLAN (downlink-to-uplink only) and CCTV (10 Mbps, data & power up to 250 m)
- IEEE802.3x full-duplex flow control and Backpressure half-duplex flow control
- Panel indicators (PWR, LNK/ACT, PoE, DATA) monitor status and assist fault diagnosis
- -30 °C to 65 °C wide operating temperature range for harsh field environments
Specifications
IEEE Standards
| IEEE802.3 / 802.3u / 802.3ab / 802.3z | 10/100/1000Base Ethernet |
| IEEE802.3x | Flow Control (full-duplex) & Backpressure (half-duplex) |
| IEEE802.3af / 802.3at | PoE / PoE+ |
Ports
| Copper | 4 × 10/100Mbps RJ45 (PoE) |
| Fiber | 2 × 1000Mbps SFP slots |
| PoE | IEEE 802.3af/at · up to 30 W per port |
| Working modes | VLAN · CCTV (10 Mbps, data + power up to 250 m) |
| Transfer mode | Store-and-forward |
Performance
| Switching capacity | 4.8 Gbps |
| Forwarding rate | 3.57 Mpps |
| Packet buffer | 2 Mbit |
| MAC | 4K |
| Jumbo Frame | 16 KBytes |
Power & Environment
| Power input | DC 48–57 V, powered by adapter · Max. power 75 W · Adapter AC 100–240 V, 50/60 Hz |
| Operating temp. | -30°C ~ 65°C |
| Humidity | Operating 5% ~ 95% · Storage 0% ~ 95%, non-condensing |
| ESD | Contact ±6 kV · Air ±8 kV |
| Surge | Differential ±2 kV · Common ±4 kV |
| Dimensions | 145 × 109 × 58 mm |
| Indicators | PWR · LNK/ACT · PoE · DATA |
Models & Ordering
| Model | Product Description | Price |
|---|---|---|
| ISW2000-4T2GP-POE-IN | Unmanaged industrial PoE switch — 4 × 10/100Mbps RJ45 PoE (802.3af/at, 30 W/port), 2 × 1000Mbps SFP slots, DC 48–57 V or AC 100–240 V adapter, -30 °C to 65 °C. |
SFP optical modules are quoted separately — tell us your fiber distances and we include the right optics in the same quote.
Who uses it, where it goes and how to size it
Written for the ISW2000-4T2GP-POE-IN from the official datasheet: 4 × 10/100 Mbps PoE ports (IEEE 802.3af/at, up to 30 W each), 2 × 1000 Mbps SFP slots, 75 W maximum power, VLAN and CCTV (250 m) modes, -30 °C to 65 °C, DC 48–57 V input.
Who it is for
- Installers of remote camera clusters — Up to four cameras on a pole, gate or far corner of a site, powered locally by PoE and brought back to the NVR over a fibre in one of the 2 gigabit SFP slots.
- Road, perimeter and city projects — Roadside and rooftop cabinets: the switch is rated -30 °C to 65 °C with ±2/±4 kV surge and ±6/±8 kV ESD protection.
- Sites with cable runs over 100 m — CCTV mode drops the PoE ports to 10 Mbps and carries data and power up to 250 m, enough for one camera stream where no fibre or extender is available.
- Installers who want no configuration — Unmanaged, with VLAN mode where downlink ports only talk to the uplinks, so cameras are isolated from each other without any switch setup.
Where and how to install
- Inside a closed field cabinet — The switch is 145 × 109 × 58 mm and no IP rating is listed, so put it in a closed, ventilated outdoor cabinet, away from direct sun on the door. The datasheet text does not state the mounting method (DIN rail or wall); tell us your cabinet type and we confirm the bracket.
- Power: 48–57 V DC — Input is DC 48–57 V from an adapter on AC 100–240 V. The -30 °C to 65 °C rating is for the switch; in hot or freezing cabinets check that the adapter or 48 V supply you use is rated for the same range, and size it for at least the 75 W maximum.
- Copper runs and CCTV mode — Keep each camera run to 100 m of Cat5e or Cat6 in normal operation. Switch to CCTV mode only when a run is 100–250 m: the port then works at 10 Mbps, so set that camera's stream to well under 10 Mbps, for example 4 Mbps H.265.
- Fibre uplink — The 2 SFP slots are 1000 Mbps; use 1000 Mbps modules matched at both ends (same fibre type, and paired wavelengths for single-fibre BiDi modules). Modules are quoted separately, so send us the fibre distance. Fit dust caps on unused slots and keep the fibre bend gentle inside the cabinet.
- Earth and surge on outdoor cables — The built-in ±2/±4 kV surge protection helps, but copper cables that run up poles or across open ground should also have an Ethernet surge protector at the cabinet, with the cabinet bonded to a proper earth. Fibre on the uplink avoids carrying surges back to the control room.
PoE budget: how many cameras
Each port gives up to 30 W, but the switch has 75 W maximum power in total, so four ports at 30 W (120 W) is not possible. With ordinary fixed cameras the 4 ports are the limit, not the power; with PoE+ PTZ cameras the 75 W total is the limit.
| ISW2000-4T2GP-POE-IN | |
|---|---|
| Ports | 4 × 10/100 Mbps RJ45 PoE + 2 × 1000 Mbps SFP |
| PoE standard / per port | IEEE 802.3af/at, ≤ 30 W |
| Switch maximum power | 75 W |
| 4 MP IR fixed cameras at 6 W each | 4 (24 W) — limited by ports |
| Cameras at 13 W each (PTZ-lite, heater) | 4 (52 W) |
| PoE+ PTZ cameras at 25 W each | 2 (50 W); 3 would use all 75 W |
| Camera cable, normal / CCTV mode | 100 m / 250 m at 10 Mbps |
| Downlink total vs uplink | 4 × 100 = 400 Mbps vs 1000 Mbps SFP |
| Switching / forwarding | 4.8 Gbps / 3.57 Mpps |
| Power input | DC 48–57 V (adapter AC 100–240 V) |
| Operating temperature / humidity | -30 °C to 65 °C / 5–95% non-condensing |
| Surge / ESD | ±2 kV diff., ±4 kV common / ±6 kV contact, ±8 kV air |
- Four ordinary 2–4 MP IR cameras: fine at any common draw up to 18 W each (4 × 18 = 72 W, still under 75 W).
- PoE+ PTZ: plan two per switch, or one PTZ plus up to three small fixed cameras.
- Anything that needs more than 30 W per port (802.3bt / Hi-PoE) is not supported on this switch.
Camera draws (6 W, 13 W, 25 W) are typical assumptions; use the maximum power from each camera's datasheet. The datasheet gives 75 W as the switch's maximum power and does not state a separate PoE budget, so keep a margin below it. 100 m is the general Ethernet copper limit; 250 m applies only in CCTV mode.
Industrial PoE Switch FAQ — ISW2000-4T2GP-POE-IN
How many IP cameras can the ISW2000-4T2GP-POE-IN power?
How far can it reach a camera or the control room?
Does it need any configuration?
Can it survive outdoor field cabinets?
How is the switch itself powered?
Can the ISW2000-4T2GP-POE-IN power a PTZ camera or a 60 W device?
Which SFP modules do I need for the ISW2000-4T2GP-POE-IN uplink?
In VLAN or CCTV mode, can I plug a laptop into a spare port of the ISW2000-4T2GP-POE-IN to see the cameras?
Can I daisy-chain several ISW2000-4T2GP-POE-IN switches along a fence or road with the two SFP ports?
Are the 100 Mbps ports on the ISW2000-4T2GP-POE-IN fast enough for 4K cameras?
Ordering questions — samples, shipping, payment, lead time and genuine stock — are answered once on our FAQ page.
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