Allen-Bradley · Stratix 4100
Allen-Bradley 1783-ETAP3T Stratix 4100 EtherNet/IP Tap
three-port copper EtherNet/IP tap
Product Profile
An EtherNet/IP line or Device Level Ring can incorporate Allen-Bradley 1783-ETAP3T as a Stratix 4100 tap between a machine device and the network path. Its three-port architecture separates the connected device from the two network-facing paths, allowing the tap to occupy a defined connection point instead of acting as a general-purpose multiport switch.
The tap belongs to the Stratix 4100 EtherNet/IP family and is used where a local device must join a linear or ring arrangement. Its component structure combines copper Ethernet connections, local status indication, address-setting hardware, and a DC supply interface in one compact network element.
Its operating role includes connection participation and network visibility, while system-level settings determine its address and DLR behavior. This is the configuration boundary for 1783-ETAP3T: it provides the tap function and diagnostic interface, but the attached device, network addressing plan, and ring design remain part of the broader EtherNet/IP system.
Technical Specifications
| Specification | 1783-ETAP3T |
|---|---|
| Brand | Allen-Bradley |
| Product family | Stratix 4100 EtherNet/IP taps |
| Copper interfaces | 3 x RJ45; 2 network ports + 1 device port |
| Network media | Category 5e minimum copper Ethernet |
| DC supply | 24 V DC (18...32 V DC) |
| Power consumption, maximum | 3.70 W |
| Current consumption, maximum | 180 mA at 24 V DC |
| Mounting | DIN rail or panel; vertical or horizontal |
| Operating temperature | -25 to 70 °C (-13 to 158 °F) |
| Relative humidity | 5...95% noncondensing |
| Dimensions (H x W x D) | 145.2 x 34.5 x 139.6 mm |
| IP startup | DHCP enabled; no IP address out of box |
| DLR supervisor | DIP switch / software configuration |
| Web diagnostics | Read-only diagnostics available |
Tap installation and IP startup
System focus
Tap installation and IP startup
Mount 1783-ETAP3T on a DIN rail or panel, wire the compliant 24 V DC source at the bottom connector, then connect the device and the two linear/ring paths according to the illustrated port roles. The instructions require a Class 2/LIM or approved SELV source for the power path and prescribe the DC wiring conditions.
The tap is DHCP-enabled but has no factory IP address. Set the three rotary switches before installation when a 192.168.1.xxx last octet is required, then power-cycle after a switch change so the tap can read the new setting.
- 24 V DC, 18...32 V range
- Device + two network ports
- Rotary switch read at power-up
DLR and diagnostic decision points
Technical reference
DLR and diagnostic decision points
DIP switch 1 can enable DLR Ring Supervisor behavior for a DLR application; in the off position, the same role can instead be enabled and parameterized by software. Select the intended method before commissioning, then cycle power when the DIP setting changes.
The read-only web interface exposes diagnostic overview, network settings, Ethernet statistics and ring statistics. A link error should first be checked against the connected device speed/duplex settings because the manual warns that mismatches can create high error rates or loss of connectivity.
- DLR supervisor by DIP or software
- Read-only web diagnostics
- Verify speed/duplex compatibility
Frequently Asked Questions
When a ring node must expose one machine connection, why is 1783-ETAP3T not a generic three-port switch?
1783-ETAP3T is identified as a Stratix 4100 EtherNet/IP tap with three copper RJ45 ports. Its connection plan should follow the documented EtherNet/IP tap role rather than an assumed unmanaged-switch topology.
What must be verified before first power is applied to 1783-ETAP3T?
1783-ETAP3T specifies a 24 V DC power supply. The cabinet wiring should confirm that supply and retain clear identification of the three copper network leads.
How much DIN-rail space should be reserved for 1783-ETAP3T?
1783-ETAP3T has published dimensions of 145.2 x 34.5 x 139.6 mm. The rail footprint and cable exit space must be checked against those values.
Which communications family is relevant when configuring 1783-ETAP3T?
1783-ETAP3T is an EtherNet/IP product in the Stratix 4100 tap family. Configuration and commissioning should use the documentation for that exact product family.
Can 1783-ETAP3T be planned as a fiber node?
No. 1783-ETAP3T is listed with three copper RJ45 interfaces. A fiber requirement needs a catalog number with the corresponding official interface description.
What throughput expectation is stated for 1783-ETAP3T?
1783-ETAP3T lists data transfer up to 1 Gbps. The connected network design must still use the exact product documentation for any topology or configuration decision.
Moore Automation
Moore Automation
International customer communication
Moore Automation works with enquiries that identify the maker's complete model and requested quantity. Direct contact details keep follow-up focused on the installed network role.
- Original products
- Fast delivery
- 1-year warranty
- 12-hour online response
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