User Manual

ADCP-75-192 • Issue D • October 2005 • Section 3: Network and System Installation and Setup

Page 3-9

 2005, ADC Telecommunications, Inc.

6.2.9 Maximum Number Of Carriers

This parameter is no longer used in the Digivance CXD system.

transceptBtsControlParamsTable.transceptBtsControlParamsMaxCarriers.

6.2.10 Composite Mode

The Digivance CXD default forward gain balance is called “composite mode”. In this mode,

an RF input signal of -4 dBm RMS at HDC input “RF 1” will yield an output of 38 dBm RMS

at each RAN antenna port. As the protocol is irrelevant in this mode, the default protocol is

“none”. In addition, only a single FSC channel is activated. To sum multiple FSC channels, set

the composite mode entry to “disabled” and follow instructions on setting channels in the

Tenant Configuration section of this document.

transceptBtsConnectionForwardGainTable.transceptBtsConnectionForwardGainCompositeM

odeFlag

6.2.11 Power Attenuator IDs

The BTS Connection MIB contains two fields that allow the external power attenuators to be

identified. The attenuators reside in a shelf at the top of each rack. To configure these two MIB

fields, the nomenclature described in Table 3-1. HUB Rack Numbering, should be used. This

dictates that the attenuators should be given names that indicate the shelf number and the

location on the shelf. For a given tenant, the two power attenuators must be configured with

unique IDs, where the allowable values are strings of length 1-16. If both attenuators are

configured, then software will configure the BIM to operate in duplexed mode, otherwise,

software will configure the BIM to operate in non-duplex mode. The MIB fields are:

transceptBtsControlParamsTable.transceptBtsControlParamsPowerAttenXLoc, where X = 1 or 2.

6.3 Pathtrace Format

Pathtrace is a term used to describe the 64-byte data stream that is transmitted between all DIF-

connected modules in the Digivance CXD system. The contents of the pathtrace strings have

been designed such that each set of connected tenant equipment will transmit/receive a

pathtrace string containing information about that particular tenant. The following is the format

of the pathtrace string:

• The Tenant ID sub-string is comprised of four particular pieces of information: Tenant

Name, BTS ID, BTS Sector, and Tenant Band. These four pieces of information form

the Tenant ID sub-string, where each piece of information is delimited by a single

character (currently a colon ":").

• The IP Address sub-string indicates the IP Address of the CPU node that transmits the

pathtrace string.