User Manual

ADCP-75-192 • Issue D • October 2005 • Section 1: Overview
Page 1-9
 2005, ADC Telecommunications, Inc.
support the desired coverage objectives. Proper antenna selection and the mounting installation
is the responsibility of the customer.
When using customer supplied antenna, they should meet or exceed the following antenna
specifications:
• VSWR (all bands): 1.5:1 typ, 1.65:1 max
• Maximum power input: 200W (average) 1000W (peak)
• Passive Intermodulation Distortion: -153dBc (maximum)
3.7 HUB Subsystem Assemblies
The Hub is comprised of a single rack assembly with two chassis types. The Hub rack houses
the following modules:
1. The Digital Chassis houses the following modules:
• CPU (Master or Slave)
• System Interface card (STF2)
• Sonet Interface (SIF)
• Reverse Simulcast card (RSC)
• CompactPCI Power Supply (CPS)
2. The RF Chassis houses the following modules;
• Hub DownConverter card (HDC)
• Hub UpConverter card (HUC)
• Forward Simulcast card (FSC)
• CompactPCI Power Supply (CPS)
3. Attenuator Rack which houses up to twelve (12) attenuators.
4. Base Station Interface Module (BIM). The BIM is a multi-port transition module used to
interface with the Tenant’s base station sector. The BIM accepts either duplexed or non-
duplexed RF from the base station sector and provides the Digivance CXD-Hub RF
section separate transmit and receive paths.
5. Ethernet hub with twenty four (24) ports.
• 48 VDC Power Distribution Unit.
6. Hub Reference Module.
The Attenuator Rack, BIM, Ethernet Hub and Reference Module are sold as accessory items.
The functionality of each of these card assemblies is defined in the following section.