Siemens 7XV5662-0AD00/DD ET/T1 Communication Converter

The SIEMENS 7XV5662-0AD00/DD Communication Converter ET/T1 is a compact 2 Mbit/s communication converter that is intended to connect synchronous and asynchronous serial data from protection and automation devices to E1 (2 Mbit/s, G.703.6) or T1 (1.544 Mbit/s) communication networks. It guarantees noise-free data transfer via optical fiber on the device side and offers a jumper-configurable, electrical E1/T1 interface to the telecommunications or utility network.

This converter is especially well-suited for SIPROTEC 4 and SIPROTEC 5 protection relays and other serial devices, facilitating the exchange of reliable teleprotection, differential protection, and automation data over existing carrier or WAN infrastructure. It is the optimal choice for severe industrial and utility environments due to its extensive self-monitoring, robust industrial design, and wide-range auxiliary power supply.

Product Details:

• Type: Dual-channel communication converter for serial data to E1/T1 (G.703.6) networks.​

• Optical inputs: Two independent FO1/LWL1 and FO2/LWL2 with ST connectors, 820 nm multimode fiber (62.5/125 µm or 50/125 µm), max. 1.5 km.​

• Synchronous mode: 512 kbit/s, FM0 coding for SIPROTEC devices (e.g., 7SA52, 7SD52/61, SIPROTEC 5).​

• Asynchronous mode: 1.2 to 115.2 kbaud (RS232/RS485 up to 57.6 kbaud for DIGSI), bit-transparent.​

• E1/T1 interface: E1 2.048 Mbit/s (HDB3, 120 Ω) or T1 1.544 Mbit/s (B8ZS/AMI, 100 Ω); 7XV5662-0AD00 screw terminals, 7XV5662-0AD01 BNC.​

• Service interface: 9-pin D-Sub RS232/RS485 for configuration/diagnostics, up to 115.2 kbaud.​

• Power supply: Wide-range 24–250 V DC or 110–230 V AC; power consumption DC <2.2 W, AC <6.5 VA.​

• Signalling: “Device OK” (GOK) potential-free changeover contact; multiple LEDs for power, error, Tx/Rx, sync.​

• Dimensions: 188 mm × 120 mm × 56 mm (W × D × H), DIN-rail mount (TH 35-7.5).

Applications:

1) Teleprotection schemes that connect SIPROTEC 4 relays (e.g., 7SA52, 7SD52/61) to E1/T1 networks via optical serial.

2) Differential protection communication for SIPROTEC 5 devices (e.g., 7SD8 series) over carrier-grade E1/T1 infrastructureAsynchronous serial data transmission from RTUs, IEDs such as 7SD51 or 7XV5653, to WAN E1/T1 leased lines.

3) Using existing SDH/PDH/PCM systems with G.703.6 interfaces, substation automation and remote control integration can be achieved.