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The 1783‑US8T is an 8-port unmanaged industrial Ethernet switch for the Stratix 2000 series, 8 RJ45 10/100 Mbps auto-sensing ports, no SFP/fiber ports, supports full/half duplex, Cat5e and above twisted pair, up to 100 meters. Compatible with Ethernet/IP, TCP/IP, UDP, DHCP, 24 VDC (18–30 VDC), also supports 18–30 VAC, maximum power consumption of about 4.6 W, surge current 1.31 A.
Parameter
| Parameter | 1783‑US4T | 1783‑US8T | 1783‑USP8T (Replacement for 1783‑US8T) | 1783‑US16T | 1783‑US7T1F |
|---|---|---|---|---|---|
| Port Configuration | 4× RJ45 10/100 Mbps copper ports, no SFP ports | 8× RJ45 10/100 Mbps copper ports, no SFP ports | 8× RJ45 10/100/1000 Mbps auto‑sensing copper ports, no SFP ports | 16× RJ45 10/100 Mbps copper ports, no SFP ports | 7× RJ45 copper ports + 1× SFP fiber port (100 Mbps) |
| Management Type | Unmanaged, plug‑and‑play | Unmanaged, plug‑and‑play | Unmanaged, plug‑and‑play | Unmanaged, plug‑and‑play | Unmanaged, plug‑and‑play |
| Power Specification | 24 VDC (18–30 VDC/AC) | 24 VDC (18–30 VDC/AC), max power consumption ~4.6 W | 24 VDC (18–30 VDC/AC) | 24 VDC (18–30 VDC/AC) | 24 VDC (18–30 VDC/AC) |
| Protection Class | IP30 | IP30 | IP30 | IP30 | IP30 |
| Operating Temperature | ‑40°C to 75°C | ‑40°C to 75°C | ‑40°C to 75°C | ‑40°C to 75°C | ‑40°C to 75°C |
| Mounting Method | DIN rail | DIN rail | DIN rail | DIN rail | DIN rail |
| Core Features | 4‑port compact design, ideal for micro‑networking | 8‑port standard design, universal networking | 8‑port Gigabit upgrade, higher bandwidth | 16‑port expansion, for medium‑to‑large device access | 7 copper + 1 fiber ports, supports long‑distance fiber transmission |
| Typical Application | Small‑scale device interconnection | Small‑to‑medium production line device interconnection | 8‑port scenarios requiring higher bandwidth | Large production lines, centralized multi‑device access | Copper‑fiber hybrid networking, cross‑regional interconnection |
FAQ:
1.Does 1783-US8T support broadcast storm suppression function?
1783-US8T supports the broadcast storm suppression function, which adopts a fixed packet rate threshold for port rate matching. No manual configuration is required, and it automatically takes effect in non-management mode.
- 10 Mbps port: 20 pps (packets per second).
- 100 Mbps port: 200 pps (packets per second).
- Mechanism: Based on the packet count threshold, if it exceeds the limit, the over-limit broadcast packet will be discarded to prevent network congestion.
- Configuration: No management interface, threshold cannot be modified, enabled by factory default.
2.After the replacement model 1783-US8T 1783-USP8T is upgraded to a Gigabit port, are the installation dimensions of the two the same? Can they be directly replaced?
1783‑US8T has the same mounting dimensions as the replacement model 1783‑USP8T and is a direct replacement:
| Parameter | 1783‑US8T | 1783‑USP8T | Compatibility Description |
|---|---|---|---|
| Dimensions (H×W×D) | 114.5×76.8×45.6 mm (4.5×3.02×1.80 in) | 114.5×76.8×45.6 mm (4.5×3.02×1.80 in) | Identical dimensions; mounting positions and DIN rail clips are fully interchangeable |
| Port Configuration | 8×10/100 Mbps RJ45 ports | 8×10/100/1000 Mbps RJ45 ports | Same physical port form factor; auto‑negotiation ensures rate compatibility |
| Power Specification | 24 VDC/AC (18–30 VDC/AC) | 24 VDC/AC (18–30 VDC/AC) | Matching power interface and wiring specifications; shared power supply supported |
| Protection Class / Mounting | IP30, DIN rail mounting | IP30, DIN rail mounting | No differences in mounting method and protection level |
| Core Difference | Fast Ethernet ports only | Gigabit Ethernet ports (bandwidth upgrade) | Full functional compatibility; direct replacement without disrupting network topology |
3.The 8 electrical ports of 1783-US8T are all 10/100 Mbps rate. Can they communicate compatible with Gigabit devices?
The 10/100 Mbps electrical port of 1783-US8T can communicate with Gigabit devices compatible with it. It can be reduced to 100 Mbps through automatic negotiation and supports full duplex/Auto-MDI/MDI-X. There are no compatibility issues, but it cannot take advantage of Gigabit bandwidth. Gigabit speeds can be directly replaced with 1783-USP8T.
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