Chapter 3 External Cables
Sequence
Name
Signal De-
scription
Pin at End
A
Pin at End
B
6
DRY_OUT3–
Dry contact
output
for switch
signals
N/A
16
7
D
Dry contact
output
for switch
signals
N/A
4
8
DRY_OUT4–
Dry contact
output
for switch
signals
N/A
17
Baseband Subrack
and Lightning Subrack
Connecting Cable
The cable connecting the baseband subrack to the lightning sub-
rack is used to monitor external and internal environments of the
cabinet and lead the dry contact monitoring cable into the cabinet,
and connect Abis interface if the Abis interface adopts an E1/T1
connection mode.
Both ends A and B of this cable are SCSI connectors.
Figure 45
shows its appearance.
F
IGURE
45 B
ASEBAND
S
UBRACK AND
L
IGHTNING
S
UBRACK
C
ONNECTING
C
ABLE
A
PPEARANCE
Table 33
describes the cable connection relationship between base-
band subrack and lightning subrack.
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53
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