29(48)
Date
Rev
Documentnumber
Prepared
Doc respons/Approved
Checked
Reference
1999-07-15
A
1531-BDV BS 101 05 Uen
INSTALLATION INSTRUCTION
Subject responsible
7
INTEGRATED CORDLESS
The Integrated Cordless (IC) is a digital cordless telephone solution complying to the DECT standard providing wire-
less connection for up to 108 portables with the A-protocol and 210 portables in GAP-protocol applications. Several
components comprise a complete system.
After the system has been physically installed use RASC and the Cordless System Manager (CSM) for initialization,
maintenance, updating, fault finding and when possible to recover the PBX from errors. The CSM can be ordered
under LZYNB 201 01 R6A or higher for the A-protocol and LZYNB 201 05 R1B or higher for GAP-applications.
7.1
Board Descriptions
7.1.1
IC-Control Unit2 (IC-CU2)
The IC-CU2 is the control board supporting the DECT GAP-protocol. The IC-CU2 includes 8 voice channel units and
is equipped with 4 BSs interfaces.
The wiring distance with remote power feeding to the BSs using only the serial communication wires SC0 and SC1 is
limited to 400m. For line lengths up to 900m additional Express Power feeding Pairs (EPP) need to be wired. The
maximum wire length between BS (fed locally) and IC-CU2 is only data limited and may reach up to 900 meters.
The board offers the following connections:
•
the Cordless System Manager (on a PC)
•
a printer to log errors
•
4 Base Stations
•
the Feature Enabling Control Unit (FECU).
7.1.2
Feature Enabling Control Unit (FECU)
This plug determines which maximum number of portables are allowed to be connected to the system. This plug is
available for various numbers of cordless telephones. For up to 8 portables no plug is required.
7.2
Traffic capacity
The IC-CU2’s traffic capacity is limited by its 8 speech transcoders. Each Base Station has a capacity of 8 simultane-
ous calls. The Grade Of Service is the probability that a call is rejected because of system congestion. The customer
has to indicate which Grade Of Service is acceptable to her/him. A Grade Of Service of 1%, or 0.01 means an aver-
age of 1 lost call in every 100 calls.
The GOS, the 8 speech circuits and the total amount of traffic (Erlang) that is required in the system are related to
each other as shown in the table below. (The Erlang value at a required GOS)
FECU number
Number of Portables
KDU 130 05/1
16
KDU 130 05/2
24