📋 Product Overview
The Nortel Meridian NTCK43AB card is a high-performance 2MB digital PRI (Primary Rate Interface) interface card designed for Nortel Meridian Option and Communication Server 1000 enterprise communication systems. This professional card enables connection of ISDN PRI digital telephone lines to simultaneously manage up to 30 voice and data communication channels.
Equipped with DPRI (Digital Primary Rate Interface) technology, this card is the ideal solution for businesses requiring robust and scalable telephone connectivity. Compatible with European E1 and American T1 standards, it offers maximum flexibility for integration into various professional telecommunication infrastructures and call centers.
⚠️ Important: Photos are for illustration only; only the content of the listing is authoritative for the exact product reference and included accessories. If in doubt, please contact us.
🎯 Key Features
- High-capacity 2MB digital PRI card (30B+D)
- Compatible with Nortel Meridian Option 11C/51C/61C/81C and CS1000
- Supports ISDN PRI European E1 standard (2.048 Mbps)
- Release 10 with advanced signaling features
- Easy installation in standard Meridian chassis
- Advanced management of incoming and outgoing calls
- Supports Q.931 and Q.921 protocols for ISDN signaling
- Flexible configuration for DID, DOD, and networking
🔧 Detailed Technical Features
| Manufacturer Reference | Nortel NTCK43AB |
| Nortel Alternate Code | NNTMET00B2EF |
| Product Type | Digital PRI Interface Card (DPRI Card) |
| Product Family | Nortel Meridian Option & CS1000 |
| Release Version | RISE/RLSE 10 |
| Memory Capacity | 2 MB (2 Megabits) |
| Interface | ISDN Primary Rate Interface (PRI) |
| Transmission Standard | E1 (2.048 Mbps) / T1 (1.544 Mbps) |
| Number of B Channels | 30 B (Bearer) channels at 64 Kbps each |
| Signaling Channel | 1 D (Delta) channel at 64 Kbps |
| Channel Configuration | 30B+D (European E1 standard) |
| Signaling Type | ISDN Q.931 (Layer 3) and Q.921 (Layer 2) |
| Supported Protocols | EURO ISDN, NI-2, DMS-100, 5ESS, QSIG |
| Line Encoding | HDB3 (E1) / B8ZS (T1) |
| Impedance | 120 Ω (E1 balanced) / 100 Ω (T1) |
| Interface Connector | RJ-45 or BNC (depending on configuration) |
| Supported Call Types | DID, DOD, Tie Trunks, Networking |
| ISDN Features | Calling Line ID, Name Display, Call Transfer, Call Forwarding |
| Clock Synchronization | Compatible with NTAK20 Clock Controller |
| DCH Interface | Compatible with NTAK93 DCH Interface (D-Channel Handler) |
| System Compatibility | Meridian 1 Option 11C, 51C, 61C, 81C, CS1000M/E |
| Card Format | Standard Nortel format for Meridian chassis |
| Power Voltage | +5V DC, ±12V DC (provided by backplane) |
| Power Consumption | Approximately 10-15W |
| Operating Temperature | 0°C to 45°C (32°F to 113°F) |
| Relative Humidity | 5% to 95% (non-condensing) |
| Approximate Weight | 0.3 kg (300 grams) |
| Dimensions (L x W x H) | 250 mm x 180 mm x 25 mm (approximate) |
| Manufacturer | Nortel Networks (Avaya) |
| Country of Manufacture | Canada / United States |
| Condition | NEW - Never Installed |
✅ Authenticity & Quality Guaranteed
All our products are original brand and authentic. We do not sell any compatible or counterfeit products. This Nortel NTCK43AB card is a genuine manufacturer’s equipment, guaranteeing maximum performance, proven reliability, and full compatibility with your Nortel Meridian and Communication Server 1000 telephone systems.
The product is in like-new condition, never installed or used, and retains all original protections. Each card is carefully inspected before shipment to ensure impeccable quality and optimal operation upon installation.
🚀 Applications & System Compatibility
This PRI card NTCK43AB Release 10 is fully compatible with the entire Nortel Meridian range and offers seamless integration into various professional telephone system configurations.
Compatible Systems: Nortel Meridian 1 Option 11C (Compact), Option 51C (Small), Option 61C (Medium), Option 81C (Large), Communication Server CS1000M (Meridian), CS1000E (Enterprise), CS1000S (Small). This card also works with IP expansion cabinets for distributed multi-site deployments.
Business Applications: Inbound and outbound call centers, multi-site enterprise telephone systems, private voice networks (telephone VPNs), PABX interconnection for inter-site networking, DID (Direct Inward Dialing) lines for direct numbering, integration with Meridian Mail voicemail, CTI (Computer Telephony Integration) solutions.
Usage Environments: Large companies and SMEs, public administrations and local authorities, healthcare facilities (hospitals, clinics), educational institutions (universities, schools), customer contact centers (B2B and B2C call centers), hotels and conference centers, telecom operators and managed service providers.
📡 ISDN PRI Technology Explained
ISDN PRI (Integrated Services Digital Network - Primary Rate Interface) is the reference technology for connecting professional telephone systems to public digital networks. This end-to-end digital interface ensures superior voice quality compared to traditional analog lines while offering advanced signaling and call management capabilities.
With its 30B+D configuration (European E1 standard), this NTCK43AB card can manage up to 30 independent telephone calls simultaneously on a single physical interface, equivalent to 30 traditional phone lines. The D channel (Delta) handles out-of-band signaling, enabling caller ID display, name transmission, and advanced features like call transfer, forwarding, and multiparty conferencing.
PRI technology also supports data applications, allowing simultaneous transmission of voice and data at 64 Kbps per channel. This flexibility makes the NTCK43AB card a versatile solution for modern businesses requiring voice-data convergence and integration with business IT applications (CRM, ERP).
🔌 Installation & Configuration
Installing the NTCK43AB card in a Nortel Meridian system requires a qualified telecom technician certified by Nortel/Avaya. The card fits into an available slot in the Meridian chassis and connects to synchronization equipment (NTAK20 Clock Controller) and the D channel manager (NTAK93 DCH Interface or NT6D11 DCH card depending on configuration).
Software configuration is done via the Meridian system LD overlays, including LD 17 for hardware definition of the PRI card, LD 15 for ISDN client configuration, LD 16 for service route definition, LD 14 for B channel and PRI trunk configuration, and LD 73 for clock synchronization. Detailed technical documentation is available from Nortel Networks for system administrators.
For connection to the operator network, a CSU/DSU (Channel Service Unit / Data Service Unit) may be required depending on the telecommunications provider's requirements. Connection cables must comply with structured cabling standards for high-speed digital transmission (shielded twisted pair cable, minimum category Cat5e).
🎁 Your Customer Benefits
- 30-Day Warranty Full protection against manufacturing defects
- Secure Shipping Fast shipping with carrier tracking number
- Professional Invoice Invoice with 0% VAT in paper format included in every package
- Authentic Product Original Nortel equipment, never compatible substitutes
- Certified Like New Condition Card never installed, in its original packaging
- Responsive Customer Service Support available for all your questions
⚠️ Important Information
Professional installation required: This PRI card requires the intervention of a qualified telecom technician trained on Nortel Meridian systems for physical installation and software configuration. In-depth knowledge of Meridian programming overlays (LD) and ISDN protocols is essential for successful commissioning.
Software and technical support: We do not provide technical support for configuration, programming, or integration of this card into your telephone system. This product is intended exclusively for professional telecom technicians, certified Nortel system administrators, or experienced telecom integrators.
Disclaimer: Installation and configuration of this equipment must comply with Nortel Networks technical specifications and telecom regulations in your country. We disclaim all responsibility for incorrect installation, improper configuration, or regulatory non-compliance. The card must be installed in a stable electrical environment with proper grounding.
