ULC-1000AN Multi-Service Access Node
The ULC-1000AN Multi-Service Access Node is a flexible platform that delivers both traditional TDM and modern IP-based broadband and voice services over existing copper networks. It enables a smooth migration from legacy TDM systems to Next Generation IP networks while reducing infrastructure and operational costs. The system offers scalable design, reliable high-speed transmission, and centralized network management for efficient service deployment.
The OPNET ULC‑1000AN Multi‑Services Access Node is a next‑generation universal platform designed for seamless migration from traditional TDM networks to IP‑based broadband infrastructure. Supporting both narrowband and broadband voice and data services, the ULC‑1000AN enables operators to deliver high‑speed, scalable, and flexible connectivity to subscribers over existing copper wireline networks — all without costly infrastructure overhauls.
Key Benefits
- Unified TDM and IP‑Based Services – Combines legacy PSTN and leased line services with modern IP voice and broadband data on one integrated platform.
- High‑Speed and Reliable Transmission – Ensures stable and efficient service delivery through advanced Ethernet, optical, and DSL interfaces.
- Flexible, Modular Design – Scales easily from small to large deployments, ideal for central office or remote outdoor applications.
- Seamless Network Migration – Provides an easy, cost‑effective transition path from legacy TDM to NGN IP networks.
- Reduced CAPEX and OPEX – Protects existing equipment investment while minimizing upgrade and maintenance costs.
- Comprehensive Network Management (NMS) – Offers complete configuration, performance, fault, and security management for optimized access network control.
Core Features
TDM‑Based Capabilities
- Open PSTN interfaces (V5.2 or 2‑wire analog) supporting standard POTS applications.
- Support for analog leased lines with or without E&M signaling.
- Multi‑rate data leased lines with interfaces including V.11, V.28, V.35, OCU‑DP, and G.SHDSL.
- DS0‑level non‑blocking cross‑connect and grooming for flexible voice and data routing.
TDM over Ethernet
- Ethernet Interfaces: 10/100/1000Base‑T and 1000Base‑FX SFP.
- Compliance with RFC 5086 CESoPSN and MEF 8 standards.
- Up to 8 x E1 over Ethernet per card with ACR synchronization.
Broadband Access
- Supports ADSL, ADSL2, ADSL2+, and G.SHDSL technologies for broadband delivery.
- Flexible network interfaces: Fast Ethernet (FE) or Gigabit Ethernet (GE).
- Integrated Layer 2 switching for advanced data services.
- Built‑in POTS splitter for simplified MDF cross‑connection.
VoIP Access
- Fully compatible with H.248, MGCP, and SIP protocols.
- Bi‑directional voice format conversion between TDM (PCM) and IP codecs (G.711, G.723, G.726, G.729).
- Advanced voice features: Voice Activity Detection (VAD), Comfort Noise Generation (CNG), and T.38 Fax over IP.
Transmission System
- Multiple transmission interfaces: E1, G.SHDSL (electrical), STM‑1/4 (optical), or Gigabit Ethernet (optical).
- Supports diverse network topologies: point‑to‑point, linear, star, ring, and hybrid configurations.
- Network protection switching enables rapid fault recovery and high service availability.
- Scalable capacity suitable for small, medium, or large deployments.
Network Management and Maintenance
- Comprehensive NMS: configuration (CM), performance (PM), fault (FM), security (SM), and inventory management.
- Integrated line testing tools for quick fault isolation and maintenance.
- User‑friendly interface designed for intuitive operation and streamlined network supervision.
Why Choose OPNET ULC‑1000AN
The OPNET ULC‑1000AN helps telecom operators embrace IP convergence while retaining compatibility with existing TDM systems. It is the ideal multi‑service access platform for operators seeking to modernize their networks with high reliability, scalable architecture, and cost‑effective service expansion.
Application:
Analog and Data Leased Line Transport Over Packet Networks
The ULC-1000AN delivers seamless legacy analog, data, and voice leased line transport over modern packet networks through its integrated TDMoPE card — enabling service providers to migrate infrastructure without disrupting existing services.
Models:
Unit & Card Reference Guide
Comprehensive listing of all supported hardware units, transceivers, channel cards, and interface modules.
1. Common Units
|
Unit Code |
Unit Name |
Description |
|
CBA-C |
System Shelf |
22-slot service shelf |
|
GE-SW |
Gigabit Ethernet Switch Unit |
High-speed GbE switching module |
|
MGU |
Media Gateway Unit |
Media gateway processing unit |
|
CPU2 |
Central Processing Unit v2 |
Central processor for MSC |
|
L-PSU |
Local Exchange Terminal Power Supply Unit |
Power supply for local exchange terminal |
|
R-PSU |
Remote Subscriber Terminal Power Supply Unit |
Power supply for remote subscriber terminal |
|
ELU |
Expansion Link Unit |
Inter-shelf expansion link interface |
|
EBC |
Expansion Bank Control Unit |
Controls expansion bank operations |
|
EBF |
Expansion Bank Fiber Unit |
Fiber interface for expansion bank |
|
MTU |
Metallic Test Unit |
Copper line diagnostics and testing |
|
V5P |
V5 Processing Unit |
V5 protocol processing module |
|
ISDN CLK |
ISDN Clock Unit |
Timing and synchronization for ISDN |
|
TGU |
Timing Generation Unit |
System-wide clock and timing generation |
|
ADP |
Bus Adaptor Unit |
Internal bus protocol adaptation |
|
VCU |
Voice Conference Unit |
Multi-party voice conferencing |
2. Transceiver Units
|
Unit Code |
Unit Name |
Description |
|
FO-XCVR |
Single-mode Fiber Optic Transceiver |
Long-haul single-mode fiber interface |
|
E1X-XCVR |
E1 Transceiver |
Single-port E1 line interface |
|
E1QX-XCVR3 |
Quad E1 Transceiver v3 |
4-port E1 transceiver, third generation |
|
E1TX-XCVR2 |
Triple E1 Transceiver Unit v2 |
3-port E1 transceiver, second generation |
|
ETH-XCVR |
Ethernet Transceiver Unit |
Standard Ethernet physical interface |
|
STM1-XCVR2E |
STM-1 Transceiver Unit v2 w/ Ethernet Channel |
STM-1 optical interface with embedded Ethernet |
|
E1QX-B |
Quad E1 Transceiver Unit via BNC |
4-port E1 with BNC connector interface |
|
TDMoPE |
TDM over Ethernet Pseudowire Unit |
Encapsulates TDM circuits over Ethernet/IP networks |
3. Broadband / Network Interface Units
|
Unit Code |
Unit Name |
Description |
|
ATMU-_GE |
Gigabit Ethernet Network Interface Unit |
GbE uplink network interface for ATM/IP convergence |
4. Broadband Channel Units
|
Unit Code |
Unit Name |
No. of Ports |
|
ATU-C8 |
ADSL2+ Terminal Unit – Central 8-port |
8 |
|
ATU-C16 |
ADSL2+ Terminal Unit – Central 16-port (w/o splitter) |
16 |
5. Network Terminating Units (NTU)
|
Unit Code |
Unit Name |
Description |
|
NTU-128 |
Terminating IDSL Interface |
IDSL 128 Kb/s network termination unit |
|
NTU-200GS |
Terminating G.SHDSL Interface |
G.SHDSL network termination unit |
6. Voice Channel Units
|
Unit Code |
Unit Name |
No. of Ports |
|
LI-POTS |
Local Exchange International POTS Channel Unit |
6 |
|
RI-POTS |
Remote Subscriber International POTS Channel Unit |
6 |
|
LI-APOTS |
Local Exchange International Advanced POTS Channel Unit |
6 |
|
RI-APOTS |
Remote Subscriber International Advanced POTS Channel Unit |
6 |
|
RI-POTSG |
Gain Adjustable Remote Subscriber POTS Unit |
6 |
|
R-UVG |
Subscriber Universal Voice Grade Channel Unit |
6 |
|
MPI |
Magneto Phone Interface |
6 |
|
ITO |
International Transmission Only Channel Unit |
6 |
|
E&M |
E&M Channel Unit |
6 |
7. Data Channel Units
|
Unit Code |
Unit Name |
No. of Ports |
|
ASDU6 |
Asynchronous/Synchronous Data Channel Unit |
6 |
|
CO64 |
CO-directional 64 Kb/s Unit |
3 |
|
OCU-DP3 |
Triple Multi-rate OCU-DP Unit |
3 |
|
IDL-128 |
IDSL 128 Kb/s Data Unit |
6 |
|
L-ISDN |
Local ISDN Unit |
6 |
|
R-ISDN |
Remote ISDN Unit |
6 |
|
N64 |
Nx64 Kb/s V.35 Unit |
1 |
|
N64-GS2 |
Nx64 Kb/s SHDSL Unit v2 |
2 |
|
E1V5 |
V5 Interface Unit |
1 |
|
E1QAX |
Quad Asynchronous E1 Transceiver Unit |
4 |
|
DLAN2 |
Dual-port LAN Unit v2 |
2 |
|
U1QX |
Quad E1/T1 Line Unit |
4 |
System Capacity
Maximum system capacity: 120 FXS/FXO ports per shelf.



