Ericsson BDV BS 101 01 - And KRC NB 301 01

33(46)
Date
Rev
Documentnumber
Prepared
Doc respons/Approved Checked
Reference
1998-05-29 L
1531-BDV BS 101 01 Uen
INSTALLATION INSTRUCTION
Subject responsible
7.4.3 Base station cable delay measurement
After all base stations have been installed, the cable delays must be measured in order to program the base station
delaysinto the systematinitialization time.On IC-CU2s withtherevisionR1C andhigher automatic delaymeasurement
is performed. In this case no measurement is needed but using the cordless system manager (CSM) go to the menu
"add Base Station" and enter a "1" in the field "delay".
7.4.4 Ranges on cables
The following ranges are given for base stations connected to an IC-CU2. Depending on the cable type ranges depend
on noise levels imposed on the cables. The values stated are maximum achievable ranges:
Type Cable
Maximum cable length
Wire diameter (∅)
Capacitance
Superimposed noise
8 mV/pHz 10 mV/pHz
Twisted pair 0.4 mm 45 nF/km 1.2 km 1.0 km
Twisted pair 0.5 mm 45 nF/km 1.6 km 1.4 km
Twisted pair 0.5 mm 120 nF/km 0.9 km 0.8 km
Twisted pair 0.6 mm 45 nF/km 1.9 km 1.7 km
Twisted pair 0.6 mm 120 nF/km 1.1 km 1.0 km
Double twisted pair
(J-Y (St)Y 2×2×0.6)
0.6 mm 120 nF/km 1.0 km 0.9 km
48V external
source
(optional)
-48V from
backplane
CLC x
+ T
+ T
up to 2 power pairs "EPP
V0
-
V1
+
carrying V0
-
and V1
+
+
-
DC
DC
SC0-b
SC1-b
SC0-a
SC1-a
EPPb
EPPa
SC0-b
SC1-b
SC0-a
SC1-a
EPPb
EPPa
Data/power
connector 1
Data/power
connector 2
Base Station KRC NB 201 03/_
and KRC NB 301 01/_
available only on
Base Station
KRC NB 301 01/_
IC-CU2
(one of 4
or 8)
SC0-b
SC0-a
SC1-b
SC1-a
EPPb
EPPa
S1 & 2