User Manual

AS4000 Central Terminal

Installation and Commissioning

DLP 010

605-0000-452

Issue 1.3dr Date 7/02/00

Page 2 of 6

1.1. RF Interconnect

The Commissioning Unit has two RF ports (SMA connectors 50 Ohm impedance) and

is connected to the RF antenna port using one length of RF cable and one coupler per

antenna port. Unused ports are terminated using 50 ohm RF loads. All couplers and

cables are marked to show insertion loss.

DIP/LNA

Antenna Feed

30 dB Coupler

SMA connector

N type connector

1.2. Shelf Controller Communications

On DACT racks cables with 9 pin D type adapters allow communication from the

management system port of each modem shelf to the Commissioning Unit. A female

25 pin D type connection is presented on the adapter for connection to the Sitespan

Management system.

SITESPAN 2 SITESPAN 1

SLOT 5 SLOT 9

E1IN

E1OUT E1OUT

CABINET RACK CONTROL 55B ALARM

COMBINER

BASEBAND

DOOR LED

RF CAL

-48V FAN AUX5 AUX9

SCAUX

SCLAT

JTAG

-48VB

-48VA

BATTPOS

COMBINER BASEBAND