Zte ZXC10 CBTS O1, Руководство по установке

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Wiring relationship for impedance converter
Figure 49 shows impedance converter wiring relationship.
Take following steps to establish impedance converter wiring
relationship.
i. To receive a balanced signal, connect pin 1 and pin 2. Use
converting chip to convert balanced signal into unbalanced signal
and get output from coaxial TX end.
ii. Convert unbalanced signal into balanced signal at RX end using
converting chip and feed it to RJ-45 socket.
iii. Connect shielding layer at RX end to Pin 6 of RJ-45 socket through
jumper JP2.
iv. Directly connect shielding layer of TX end to shielding layer of RJ-
45 or connect it to Pin 3 of RJ-45 through jumper JP1.
F
I G U R E
4 9 - I
M P E D A N C E
C
O N V E R T E R
W
I R I N G
R
E L A T I O N S H I P
Table 14 describes specific wiring relationship.
T
A B L E
1 4 - I
M P E D A N C E
C
O N V E R T E R
W
I R I N G R E L A T I O N S H I P
RJ
----
45 Socket Chip Related function
1&2 JP1 TX core line
3 JP1 TX shield
4&5 JP2 RX core line
6 JP2 RX shield