TE Connectivity 740570-0 UNS-ACCEL-1 InterReach Unison Hub

TE Connectivity 740570-0 (UNS-ACCEL-1) InterReach Unison Accel Hub

The TE Connectivity / ADC 740570-0 (Model: UNS-ACCEL-1) is an industrial-grade InterReach Unison Accel Hub engineered for high-density Distributed Antenna Systems (DAS). Originally designed by LGC Wireless and integrated into TE Connectivity / CommScope wireless portfolios, this central distribution unit acts as the primary RF routing and power distribution bridge between base transceiver stations (BTS) / bi-directional amplifiers (BDA) and remote access units (RAUs) deployed across large facilities, industrial complexes, offshore topsides, and marine vessels.

Built into a durable rack-mountable enclosure, the UNS-ACCEL-1 consolidates RF distribution, multi-protocol processing (including GSM, EDGE, CDMA2000, and W-CDMA), system monitoring, and centralized remote power over structured copper cabling. The unit features internal switch-mode power conversion accepting 115/230 VAC (5.5 A / 3.0 A, 50/60 Hz) nominal utility/generator feeds, outputting regulated low-voltage DC power combined with RF over shielded multi-pair/CATV cabling directly to connected remote antenna heads.

Model Details

• Manufacturer: TE Connectivity / ADC Telecommunications (Origin: LGC Wireless)
• Equipment Part Number (EPN): 740570-0
• Model Number: UNS-ACCEL-1
• Product Series: InterReach Unison / Unison Accel System
• Part Number Cross-References:
  • ADC UNS-ACCEL-1
  • LGC Wireless 740570-0
  • CommScope / TE Connectivity EPN 740570-0
  • UNS-ACCEL-1 REV L (and associated engineering revisions A–L)

Features

1. Multi-Carrier & Protocol Support: Fully transparent RF handling compatible with cellular, PCS, and broadband wireless protocols, including GSM, GPRS, EDGE, CDMA2000, and W-CDMA systems.
2. Integrated Power Supply Unit: Wide-range input power supply handling dual-voltage 115 VAC and 230 VAC inputs (50/60 Hz) with transient suppression, providing remote DC power distribution to downline RAUs.
3. Centralized System Supervision: Onboard diagnostic processor monitors RF gain status, optical link budgets, remote unit power health, and thermal limits, reporting via front-panel LED indicators and rear dry-contact alarm ports.
4. Modular Double-Star Topology: Interoperates seamlessly with Unison Expansion Hubs (UNS-EH) and Remote Access Units to scale RF coverage without sacrificing uplink noise floor limits.
5. Rugged Heavy-Gauge Chassis: 19-inch rack-compatible enclosure constructed with passive and forced-air convection cooling paths to operate in ambient control room environments.

Compatibility

• Expansion Units: InterReach Unison Expansion Hubs (UNS-EH-1, 740531-3).
• Main Hub Modules: InterReach Unison Main Hub family (UNS-1-MH-1, UNS-1-MH-2, 740511-3).
• Remote Access Units (RAUs): Compatible with standard Unison band-specific active remotes (UNS-PCS-1, UNS-CELL-1, UNS-iDEN-1, dual-band variants).
• RF Conditioning Modules: Interfaces with external Bi-Directional Amplifiers (BDAs), Base Transceiver Station (BTS) attenuator trays, and RF combiners matching 50-ohm RF input parameters.

Frequently Asked Questions

What is the primary function of the TE Connectivity 740570-0 (UNS-ACCEL-1)?

The UNS-ACCEL-1 functions as the centralized distribution hub within an InterReach Unison Accel Distributed Antenna System. It receives incoming RF signals from a carrier base station or BDA, conditions the signals, and routes both RF and regulated operating DC power out to multiple remote antenna units situated across a facility or ship.

Can the UNS-ACCEL-1 handle both 115V and 230V power supplies?

Yes. The internal power supply is rated for dual input ranges: 115 VAC at 5.5 Amps and 230 VAC at 3.0 Amps, 50/60 Hz. This enables compatibility with US standard utilities, European distribution systems, and marine vessel onboard auxiliary power generators.

How does the Accel Hub differ from standard Unison Main Hubs?

The Unison Accel line was designed to optimize deployment costs and footprint for small to medium installations. It delivers the same RF core performance and network protocol management as the larger standard Unison architecture, bundled into a streamlined form factor with simplified cabling and localized monitoring options.

What are the indicators for hardware or link failure on this unit?

The front fascia contains status LEDs that display unit health, power status, and port connectivity. A solid green light indicates normal operation, while amber or red lights signal RF link budget degradation, downline cable open/short circuits, or power supply rail faults. Fault relays on the rear panel can be wired into central vessel alarm and monitoring systems (AMS) or facility SCADA.

Is this unit compatible with modern LTE or 5G systems?

The UNS-ACCEL-1 was architected for legacy protocols including GSM, CDMA, W-CDMA (3G), and sub-2 GHz wireless allocations. When utilized in legacy retrofits or dedicated marine VHF/cellular repeater links, it operates transparently within its designated frequency bandwidths. For modern high-frequency sub-6 GHz 5G NR deployments, verify your exact band plan and carrier frequencies against the hub’s installed RF conditioning modules.