cascading site config
TRANSCRIPT
The V3 site,the ID_DOG have 15 bits in logical. There are two switches S1 and
S2 physically.
For each bit of S1 and S2, status “ON” means “0”, “OFF” means “1”
S1 bits 1—8 are mapped ID_DOG logical bits 0—7; S2 bit 1—8 are mapped
ID_DOG logical bits 8—15;
V3
F I G U R E 1 - C A B I N E T -T O P D IP S W I T C H E S
The meaning of each bit is explained as follows:
NO Name Meaning Description
15 BTS_TYPE BTS TYPE 1100: B8018
14 1101: B8112 1101
13 1110: M8202
12 1111: M8204
11 BTS_NO No. of the cabinet of the same
site
00: Basic cabinet 00
01: Extended cabinet
10: Extended cabinet 10
9 SLAVE1_PORT The E1 port of the basic cabinet
to connect extended cabinet 1
00: Port E of the basic cabinet 11
01: Port F of the basic cabinet
10: Port G of the basic cabinet
11: Port H of the basic cabinet
8
7 SLAVE2_PORT The E1 port of the basic cabinet
to connect extended cabinet 2
00: Port E of the basic cabinet 11
01: Port F of the basic cabinet
10: Port G of the basic cabinet
11: Port H of the basic cabinet
6
5 SATE Whether to use the satellite Abis
link or not
0: Common Abis 0
1: Satellite Abis
4 ABIS_PORT O&M port number 00: Port A 01: Port B 00 (4down,5up for
pcm2)
10: Port C 11: Port D
3
2 ABIS_TS The O&M LAPD timeslot on the
Abis interface
000: TS16 001: TS31 010: TS30 010
011: TS29 100: TS28 101: TS271
110: TS26 111: TS250
The number of the E1 port of the basic cabinet to connect the lower-level site cannot be the same as of SLAVE_PORT1 or SLAVE_PORT2. For example, suppose Port F of the basic cabinet connects with the lower-level site, then the values of SLAVE_PORT1 and SLAVE_PORT2 cannot be 01.
For example,site1 and site2 are BTS B8018,site2 is the downsite of site1.Both sites use the common Abis,site1 E1 port A connect to BSC,site2 E1 port A connect to site1
port D. The O&M timeslot of site2 is TS31.Then the dip switches are:
Site1: S1(1—8) 00000000 S2(1—8) 00000011Site2: S1(1—8) 10000000 S2(1—8) 00000011
Installing E1 Cable
E1 cables are connected through E1 PORT1 and E1 PORT2 on the cabinet top,
mainly used for Abis interface connection, site cascading, and cabinet
combination. E1 cables include 75 Ω E1 cables and 120 Ω E1 cables.
The 75 Ω E1 cable adopts thin co-axial cable with D-type socket, including eight
thin co-axial cables, as shown in Figure 2.
F I G U R E 2 – 75 Ω E1 C A B L E
1. DB25 Connector (hole) 2. Label 3. BNC
75 Ω E1 cable signals are described in Table 1 and Table 2.
75 Ω E1 cable
T A B L E 1 – 75 Ω E1 C A B L E S I G N A L D E S C R I P T I O N (E1 PORT1)
Cable ID
(Label)
End A
(DB25
Pin)
End B
(BNC
Core/Shell)
Signal NameSignal
Definition
DS-
95807-
012
1B1
B1 core E1AIN+ The first E1
input 14 B1 shell E1AIN-
8B5
B5 core E1AOUT+ The first E1
output 20 B5 shell E1AOUT-
2B2
B2 core E1BIN+ The second
E1 input 15 B2 shell E1BIN-
9B6
B6 core E1BOUT+ The second
E1 output 21 B6 shell E1BOUT-
4B3
B3 core E1CIN+ The third
E1 input 17 B3 shell E1CIN-
11B7
B7 core E1COUT+ The third
E1 output 23 B7 shell E1COUT-
5B4
B4 core E1DIN+ The fourth
E1 input 18 B4 shell E1DIN-
12B8
B8 core E1DOUT+ The fourth
E1 output24 B8 shell E1DOUT-
T A B L E 2 – 75 Ω E1 C A B L E S I G N A L D E S C R I P T I O N (E1 PORT2)
Cable ID
(Label)
End A
(DB25
Pin)
End B (BNC
Core/Shell)
Signal
Name
Signal
Description
DS-95807-0131
B1
B1
coreE1EIN+
The first E1
input 14
B1
shellE1EIN-
8B5 B5
coreE1EOUT+
The first E1
output
20 B5 E1EOUT-
Cable ID
(Label)
End A
(DB25
Pin)
End B (BNC
Core/Shell)
Signal
Name
Signal
Description
shell
2
B2
B2
coreE1FIN+
The second
E1 input 15
B2
shellE1FIN-
9
B6
B6
coreE1FOUT+
The second
E1 output 21
B6
shellE1FOUT-
4
B3
B3
coreE1GIN+
The third E1
input 17
B3
shellE1GIN-
11
B7
B7
coreE1GOUT+
The third E1
output 23
B7
shellE1GOUT-
5
B4
B4
coreE1HIN+
The fourth
E1 input 18
B4
shellE1HIN-
12
B8
B8
coreE1HOUT+
The fourth
E1 output24
B8
shellE1HOUT-
The 120 Ω E1 cable adopts twisted pair cable with D-type socket, as shown in
Figure 3.
120 Ω E1 cable
F I G U R E 3 – 120 Ω E1 C A B L E
1. DB25 connector (hole) 2. Label
120 Ω E1 cable signals are described in Table 3 and Table 4.
T A B L E 3 – 120 Ω E1 C A B L E S I G N A L D E S C R I P T I O N (E1 PORT1)
Cable ID
(Label)
End A
(DB25
Pin)
End B
(Twisted
Pair Cable
Color)
Signal
Name
Signal
Definition
DS-95807-014 1 Green red 1 E1AIN+ The first E1
input 14 Green red 2 E1AIN-
8 Blue red 1 E1AOUT+ The first E1
output 20 Blue red 2 E1AOUT-
2Green black
1E1BIN+
The second
E1 input 15
Green black
2E1BIN-
9 Blue black 1 E1BOUT+ The second
E1 output 21 Blue black 2 E1BOUT-
4Orange red
1E1CIN+ The third E1
input 17 Gray red 1 E1CIN-
11 Pink red 1 E1COUT+ The third E1
output 23 Pink red 2 E1COUT-
5 Orange E1DIN+ The fourth
Cable ID
(Label)
End A
(DB25
Pin)
End B
(Twisted
Pair Cable
Color)
Signal
Name
Signal
Definition
black1E1 input
18 Gray black 1 E1DIN-
12 Pink black 1 E1DOUT+ The fourth
E1 output24 Pink black 2 E1DOUT-
T A B L E 4 – 120 Ω E1 C A B L E S I G N A L D E S C R I P T I O N (E1 PORT2)
Cable ID
(Label)
End A
(DB25
Pin)
End B
(Twisted
Pair Cable
Color)
Signal
Name
Signal
Definition
DS-95807-015
1 Green red 1 E1EIN+ The first E1
input 14 Green red 2 E1EIN-
8 Blue red 1 E1EOUT+ The first E1
output 20 Blue red 2 E1EOUT-
2 Green black 1 E1FIN+ The second
E1 input 15 Green black 2 E1FIN-
9 Blue black 1 E1FOUT+ The second
E1 output 21 Blue black 2 E1FOUT-
4 Orange red 1 E1GIN+ The third E1
input 17 Gray red 1 E1GIN-
11 Pink red 1 E1GOUT+ The third E1
output 23 Pink red 2 E1GOUT-
5Orange black
1E1HIN+ The fourth
E1 input 18 Gray black 1 E1HIN-
12 Pink black 1 E1HOUT+ The fourth
E1 output24 Pink black 2 E1HOUT-
Cabinet Cascading
Site ID is a 16 bit number starting from 15 to 0 (left to right). 1-8 bit of DIP switch
S1 stands for bit 0-7 for ID while 1-8 bits of S2 stands for bit 8-15 for ID.
Figure 4 shows ID numbering.
F I G U R E 4 – ID N U M B E R I N G
Table 5 provides ID details.
T A B L E 5 – ID D E T A I L S
Serial
NumberName Meaning DIP Description
15
BTS_TYPE
BTS type 1100: B8018
14 1101: B8112
13 1110: M8202
12 1111: M8204
11
BTS_NO
Cabinet
number within
the same site
00: master cabinet;
01: slave cabinet 1;
02: slave cabinet 2
10
9
SLAVE1_PORT
E1 port of
master cabinet
to connect
slave cabinet
1
00: master cabinet E
port;
01: master cabinet F
port;
10:master cabinet G
port;
11: master cabinet H
8
7 SLAVE2_PORT E1 port of
master cabinet 6
Master and Slave Cabinet
Settings
Serial
NumberName Meaning DIP Description
to connect
slave cabinet
2
port
5
SATE
Whether to
use the
satellite Abis
link or not
0: Common Abis;
1: Satellite Abis
4
ABIS_PORT
O&M port
number
00: Port A;
01: Port B;
10: Port C;
11: Port D
3
2
ABIS_TS
O&M LAPD
timeslot on
Abis interface
000: TS16;
001: TS31;
010: TS30;
011: TS29;
100: TS28;
101: TS27;
110: TS26;
111: TS25.
(BTS_NO unequal to 0
indicates it’s not
master cabinet,
ABIS_TS fixedly uses
16 timeslots, in this
case, set ABIS_TS to
be 000.)
1
Note: By default, on-site monitoring equipment port selects RS232 port to
connect transparent channel by software and doesn’t support other modes.
SLAVE1_PORT and SLAVE_PORT2 cannot conflict with cascading ports. The power-
down bypass relationship of B8018 is: A—E, B—F, C—G, D—H.
The follow is the photo how to config cascading site.