Ericsson MRS3000, Руководство по обслуживанию на месте

Страница: 64 / 159

Open information
DESCRIPTION
16 (69)
Uppgjord (även faktaansvarig om annan) - Prepared (also subject responsible if other) Nr - No.
KL/ECS/SMK Magnus Lindahl MRS3000 Programmers reference manual
Dokansv/Godk - Doc respons/Approved Kontr - Checked Datum - Date Rev File
KL/ECS/S/MK 1997-04-16 A LZB 119 1661
PROG.DOC
CU LINE LEVEL (AREA 1 TAB 29)
ROW 01 :
RX amplification at 1000 Hz to compensate line attenuation
Value range: 0 - 7
0
⇔
0 dB
1
⇔
3 dB
2
⇔
6 dB
3
⇔
9 dB
4
⇔
12 dB
5
⇔
15 dB
6
⇔
18 dB
7
⇔
21 dB
ROW 02 :
Line equalizer additional amplification at 3000 Hz
Value range: 0 - 3
0
⇔
0 dB
1
⇔
3 dB
2
⇔
6 dB
3
⇔
9 dB
Example:
Line attenuation is 12 dB at 1000 Hz and 15 dB at 3000 Hz.
Table Row Data Comment
31 01 4 RX line attenuation = 12 dB.
31 02 1 Line equalizer = 12+3 dB at 3000 Hz
FOUR WIRE (AREA 1 TAB 30)
Value range: 0 - 1
ROW 01
1 = 4-wire connection to CU210.
0 = 2-wire connection to CU210.
This is applicable only for CU210, not for CU200 . In CU200 the choice between 2 and 4-wire
connection is done by hardware straps, see installation notes.
Note that it is the physical connection to the CU210 that shall be given here, not necessary the
connection to LP200/210. It is possible, in a system with many CU210s, to have a 2-wire
connection between the site and LP200/210, but a four 4-wire connection between the CU210s
on the site.
In this case this parameter shall be set to 1 for the CU210s not directly connected to the
LP200/210, and set to 0 for the CU210 directly connected to the LP200/210.