1. Introduction
This manual provides essential information for the proper installation, operation, and maintenance of your DIGITUS ASSMANN Electronic AT-AG CX2 Category 5e RJ45 T-Adapter. Please read these instructions carefully before use to ensure optimal performance and longevity of the product.

Image 1: The DIGITUS ASSMANN Electronic AT-AG CX2 Category 5e RJ45 T-Adapter, featuring one male RJ45 plug and two female RJ45 sockets, designed for splitting network connections.
Product Overview
The DIGITUS ASSMANN Electronic AT-AG CX2 is a passive RJ45 T-adapter designed to split a single RJ45 connection into two. It features one male RJ45 plug and two female RJ45 sockets. This adapter is rated for Category 5e cabling standards.
2. Setup
Follow these steps to correctly set up your RJ45 T-Adapter:
- Connect to Network Port: Insert the male RJ45 plug of the adapter into the desired network port on your device (e.g., router, modem, wall jack, network card). Ensure the connection is secure.
- Connect Devices: Connect your two network devices (e.g., computers, printers, IP phones) to the two female RJ45 sockets on the adapter using standard RJ45 Ethernet cables.
Important Considerations for Ethernet Use:
This adapter is a passive Y-splitter and does not function as an active network switch. For standard Ethernet networks (10BASE-T, 100BASE-TX, 1000BASE-T), it is crucial to understand its limitations:
- No Simultaneous Ethernet: If you connect two active Ethernet devices to this adapter and then to a single network port, only one device will typically be able to communicate at a time, or network conflicts (collisions) may occur. It is not designed to allow two Ethernet devices to simultaneously access a single network port independently.
- Specific Applications: This adapter may be suitable for specific applications that utilize RJ45 connectors but do not require simultaneous, independent network connections, such as certain telephony systems (e.g., ISDN S0 bus) or custom wiring setups where only a subset of pins is used or where only one device is active at a time.
3. Operating
Once connected, the adapter facilitates a physical split of the RJ45 connection. As a passive device, it does not require any power or configuration.
- Functionality: The adapter provides a physical connection point for two devices to share a single RJ45 port.
- Data Transfer Rate: The adapter supports Category 5e specifications, meaning the cabling itself is capable of handling data transfer rates up to 1 Gigabit per second. However, the effective speed and functionality will be governed by the limitations of the passive splitting and the capabilities of the connected network equipment.
4. Maintenance
The DIGITUS ASSMANN Electronic AT-AG CX2 T-Adapter requires minimal maintenance:
- Cleaning: Keep the adapter and its connectors clean and free from dust and debris. Use a soft, dry cloth for cleaning. Avoid using liquid cleaners directly on the connectors.
- Storage: When not in use, store the adapter in a cool, dry place, away from direct sunlight and extreme temperatures.
- Handling: Avoid excessive bending or pulling on the cable and connectors, as this can damage the internal wiring and impair functionality.
5. Troubleshooting
If you encounter issues with your T-Adapter, consider the following troubleshooting steps:
- No Network Connection:
- Ensure all RJ45 connections are fully seated and secure.
- Verify that the network port you are connecting to is active and functioning correctly by testing it with a single device directly, without the adapter.
- If using for Ethernet, ensure only one device connected to the adapter is active at a time to avoid network conflicts.
- Inspect the adapter and connected cables for any visible damage (e.g., bent pins, frayed wires).
- Slow Network Speed:
- Confirm that all connected cables are rated for Category 5e or higher.
- Ensure that the network devices and the main network port support the desired speed.
- Remember that a passive splitter does not enhance network performance; it merely divides the physical connection.
- Intermittent Connection:
- Check for loose connections at all points.
- Test the adapter with different cables and devices to isolate the source of the issue.
- Ensure the adapter is not exposed to electromagnetic interference.
6. Specifications
| Brand | DIGITUS |
| Model | AT-AG CX2 |
| Cable Type | Category 5e Ethernet |
| Connector Type | RJ45 |
| Connector Gender | 1x Male to 2x Female |
| Data Transfer Rate | Up to 1 Gigabits Per Second (Cat 5e capability) |
| Product Dimensions | 19.99 x 7.01 x 2.49 cm |
| Weight | 40 g |
| Color | White |
7. Warranty and Support
For warranty information or technical support, please refer to the official DIGITUS website or contact their customer service directly. Keep your purchase receipt as proof of purchase.

Image 2: DIGITUS brand information with a QR code linking to solutions and social media channels. Scan the QR code or visit the provided link for more information and support.
For further assistance, please visit the official DIGITUS website or contact their support team.





