ABB 23WT22 Voice Frequency Telegraphy Device

Inquiry now

23WT22 Product datasheet

Model number:	23WT22	Module Type：	Voice Frequency Telegraphy Device
Manufacture:	ABB	Condition：	Brand New
Range of Product:	ABB	Lead time：	In Stock
Weight:	0.9 kg	HS CODE：	8537101190
Dimension:	19x12x13.5cm	MOQ:	1
Product Origin:	SWEDEN	System：	DCS
Discontinued on:	Active	Communication Service:	Ethernet router

23WT22 Functional Description

The ABB 23WT22 Voice Frequency Telegraphy Device is a high-performance Voice Frequency Telegraphy (VFT) terminal designed for reliable supervisory control and data transmission over high-voltage power lines (110–500 kV). This Swedish-made device operates across a wide frequency range (30–500 kHz) with flexible channel spacing (120/240 Hz) and supports multiple shift ranges (±30/±60/±120 Hz). It offers configurable modulation options including Frequency Shift Keying (FSK) and Amplitude Modulation (AM), accommodating data rates from 50 to 600 baud. Its compact design (19×12×13.5cm) and lightweight construction (0.9kg) ensure easy integration into existing power line communication systems.

Engineered for robust performance, the 23WT22 ABB in stock features a 48/60V DC power supply with low consumption (<15 W) and operates in extreme temperatures (-20°C to +65°C). The device provides 1–4 independent telegraphy channels with carrier coupling through Capacitor Couplers (CC) and Line Traps (LT). With an impressive 10 kV isolation between field and logic circuits, the ABB 23WT22 Voice frequency telegraph equipment ensures safe operation in high-voltage environments. Its adjustable attenuation compensation (0–40 dB) and -30 dBm operating threshold enable reliable signal transmission even over long distances.

The FSK modem 23WT22 supports multiple interface options including 600Ω balanced audio (4-wire) and dry contact control signals (24–220V DC). This flexibility makes it suitable for various teleprotection and SCADA applications. The device's carrier frequencies (300–3400 Hz) and baud rate options (50/200 Bd) allow customization for different network requirements. As part of ABB's power line communication portfolio, the ABB 23WT22 demonstrates exceptional immunity to power line noise and interference, ensuring data integrity in challenging electrical environments.

Widely used in energy transmission systems, the VOICE FREQUENCY TELEGRAPHY DEVICE 23WT22 provides critical communication links for grid operators. Its humidity tolerance (5–95% non-condensing) and rugged construction make it ideal for substation installations. It maintains ABB's reputation for quality, offering maintenance-free operation and long service life. This VFT terminal represents an optimal solution for utilities requiring secure, real-time data exchange across high-voltage networks, combining advanced technology with proven reliability in power line carrier communications.

If you have other request contact our team to get customized service

One Year Warranty

We offer a one-year warranty for any quality issues with our products. If you encounter any defects or malfunctions during this period, please contact us for prompt resolution. Our warranty covers repairs or replacements, ensuring your satisfaction and peace of mind.
Shipping & Delivery

We have 10 years experience with leading logistics companies like FedEx, DHL, and SF, ensuring efficient and reliable shipping solutions. Our extensive experience in working with these carriers allows us to offer fast, secure delivery services, tailored to meet the diverse needs of our customers.
Payment Method

We accept a variety of payment methods, including T/T Bank Transfer, Alipay, and more, providing flexible options to suit our customers' preferences. This ensures a convenient and secure transaction process for all orders.

How Can I Get Your Support?

Call +86 18159889985 to be connected with our Manager Stella

Email to sales6@apterpower.com get your best quotation

For the quick assistance message us on WhatsApp at +86 18159889985 now!

You can also reach me via Skype: live:ariatang111 or WeChat: zxd18159889985!

ABB	087629-001	ABB	086362-001	ABB	07SS91C2 1SAY130110R0100
ABB	086444-005	ABB	086351-504	ABB	07SK90R1
ABB	IDS-DTU51	ABB	086351-001	ABB	07PS62R2
ABB	08644-005	ABB	086349-002	ABB	07NG63R1 GJV3074313R1
ABB	086387-001	ABB	086348-001	ABB	07NG61R1
ABB	086384-003	ABB	086339-001	ABB	07MK92 GJR5253300R3161
ABB	086369-001	ABB	086329-003	ABB	07KT97 WT97 GJR5253000R4270
ABB	086364-001	ABB	086318-002	ABB	07KT97
ABB	086363-002	ABB	07ZE63R302	ABB	07KT93 GJR5251300R0171
ABB	086363-001	ABB	07ZE61R302 GJV3074321R302	ABB	07KT92 GJR5250500R0262

Voice Frequency Telegraphy (VFT) Technology

The Voice Frequency Telegraphy (VFT) device is an advanced communication system that enables multiple telegraph signals to be transmitted simultaneously through a single voice-bandwidth channel using frequency-division multiplexing (FDM). By allocating distinct frequency tones within the standard 300-3400 Hz voice spectrum to individual telegraph channels, the VFT system efficiently maximizes bandwidth utilization. This technology revolutionized telecommunications by allowing operators to send several messages concurrently over existing infrastructure, significantly improving transmission capacity without requiring additional physical lines. The ABB 23WT22 exemplifies modern VFT implementation, offering configurable channel spacing (120/240 Hz) and supporting various shift ranges (±30/±60/±120 Hz) for flexible network adaptation. VFT devices maintain signal integrity through precise frequency control and advanced modulation techniques like FSK (Frequency Shift Keying), ensuring reliable data transmission even in electrically noisy environments. These systems remain particularly valuable in power utility applications where they provide critical teleprotection and SCADA communications over high-voltage transmission lines, combining legacy telegraph principles with contemporary electronic precision for robust industrial communication solutions.

Tags :