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ZXSDR BS8900 Hardware Manual
Cable Tray
The cable tray locates in the baseband power cabinet and takes
up a 1 U high space.
The cable tray is used for cable wiring, management, supporting
and protection.
Figure 5
shows its structure.
F
IGURE
5 C
ABLE
T
RAY
S
TRUCTURE
Lightning Subrack
The lightning subrack prevents the external RS232/RS485, dry
contact, E1/T1 and FE/GE interfaces of ZXSDR BS8900 out- door
transmission equipment from lightning and avoids damages to
the equipment caused by lightning induction and static electric-
ity.
The lightning subrack fulfills the following functions:
�
Supports lightning protection of 8 dry contacts.
�
Supports lightning protection of one RS232 channel and one
RS485 channel.
�
Supports lightning protection of 8 E1 channels.
�
Supports lightning protection of 2 FE/GE electrical interfaces.
The lightning subrack locates in the baseband power cabinet, an
option for configuration.
Figure 6
shows the lightning subrack
panel.
F
IGURE
6 L
IGHTNING
S
UBRACK
P
ANEL
1. RS232/RS485_EM
2. MON_IN/OUT_GO
3. BSC_E1_GO
4. ABIS_1/ABIS_0
5. BBU_A1/BBU_A0
6. BBU
6
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