ITT K400 Line Cards Phone 1A2

( Brand: Itt ), ( Manufacturer Part Number: K400 ), ( Model: K400 1A2 SYSTEM ), ( Part Type: Line Card ), ( Country Of Origin: United States )

Review ITT 1a2 Line Cards Button Phone System

The ITT K400 1A2 Line Cards are an essential component of the ITT Advanced Solutions K400 Intelligent Telephony System. These line cards offer advanced features and flexibility to support various communication requirements in modern business environments.

Each line card accommodates up to 232 Digital Signal 0 (DS0) lines or 128 Basic Rate Interface (BRI) lines, allowing for scalability to meet increasing communication demands. The cards are designed with a robust architecture, ensuring reliable and high-quality voice and data transmission.

The ITT K400 1A2 Line Cards support various signaling protocols, including E&M, FXS, and FXO, enabling seamless integration with various types of telephony equipment. Each line card features built-in test (BIT) and alarm reporting, ensuring continuous system monitoring and quick fault identification.

These line cards also support advanced features like Caller ID, Call Waiting, Call Forwarding, Three-Way Calling, and Anonymous Call Rejection, enhancing the overall user experience. Their compact design makes them easy to install and maintain, while their compatibility with various power supplies and environmental conditions ensures versatility.

The ITT K400 1A2 Line Cards are an excellent choice for businesses seeking a reliable, flexible, and feature-rich telephony solution. Their ability to accommodate multiple lines and support various signaling protocols makes them a versatile and cost-effective solution for businesses of all sizes. With their robust architecture and advanced features, these line cards ensure efficient and high-quality communication, contributing to increased productivity and customer satisfaction.

The ITT K400 1A2 line cards are modules used in the ITT Advanced Communications Systems K400 series of digital circuit-switched telephone exchanges. Here are some potential pros and cons of buying these line cards:

1. High Capacity: The ITT K400 1A2 line cards support up to 1200 digital telephone lines, making them ideal for large telecommunications systems.

2. Reliability: These line cards are known for their high reliability and durability, which is essential in a telecommunications infrastructure.

3. Flexibility: The K400 1A2 line cards support various line configurations, such as two-wire and four-wire lines, making them adaptable to different telephony requirements.

4. Signaling Capabilities: These line cards support various signaling protocols, such as E&M, DMS-100, and T1, which enable advanced features like Caller ID and Call Waiting.

1. Cost: The ITT K400 1A2 line cards can be expensive due to their high capacity and advanced features.

2. Complexity: Installing and configuring these line cards can be complex, requiring specialized knowledge and expertise in telecommunications systems.

3. Compatibility: The ITT K400 series is an older technology, and its compatibility with modern telephony infrastructure may be limited.

4. Maintenance: The ITT K400 1A2 line cards require regular maintenance and upkeep to ensure optimal performance and reliability.

The ITT K400 1A2 line cards offer high capacity, reliability, flexibility, and advanced signaling capabilities, making them an excellent choice for large telecommunications systems that require these features. However, they can be expensive, complex to install and configure, and may have limited compatibility with modern infrastructure.

If you require a high-capacity, reliable, and flexible telecommunications system with advanced signaling capabilities, the ITT K400 1A2 line cards may be an excellent investment for your organization. However, consider the cost, complexity, and compatibility issues before making a purchase decision. Alternatively, consider newer technologies that may offer similar features at a lower cost and easier installation and configuration.

Details:

3 cards are K400 E and dated 1984, 1985, 1986. All 4 cards were removed from a functioning, multiple phone, 6 button system in the late 1990 's. Have been in dry storage ever since. 4th card is an 8 chip logic of some kind, with 2 heat sinks.

The under side seems to show ITT R or K STS INT 183965 in soldered figures. Please look carefully at the photos to see what you are getting. It has no model number or date on the front.

part #: k400 prices

• $20.00-$35.00

specifications tecomsy:

• brand: Itt
• mpn: K400
• model: K400 1a2 System
• part type: Line Card
• country of origin: United States

returns tecomsy:

• policy: No Returns

shipping tecomsy:

• type: Calculated
• class: Standard, Expedited
• service: USPS Ground Advantage, USPS Priority Mail Medium Flat Rate Box
• cost: $16.15
• carrier: USPS
• transit: 5-11 Days

seller tecomsy:

• rating: 100.0%
• # reviews: 1620
• city: Wilsonville, Oregon

general tecomsy:

• condition: Used
• Office > Telecom Systems > Other Telecom Systems

offer tecomsy:

• quantity: 1
• options: Ship-to-home
• availability: In Stock
• sold: 0
• started: March 29, 2026

payments tecomsy:

• other
• wallet: Paypal
• credit card: Mastercard

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