RGPS Cabling for Multi–BTS Configurations Equipped with Optional
Primary Surge Suppressor
– continued
PRELIMINARY
SC
t
300 BTS Hardware Installation, ATP and FRU Procedures
DEC 2000
5-34
Figure 5-25: Site I/O Interface Cabling for RGPS (Synchronous) Configurations
CUSTOMER
INPUTS
SPAN
RGPS
PHONE
(MODEM)
PRIMARY
SURGE
SUPPRESSOR
SITE I/O
CABLE
CUSTOMER
INPUTS
SPAN
PHONE
(MODEM)
SITE I/O
CABLE
CUSTOMER
INPUTS
SPAN
PHONE
(MODEM)
SITE I/O
CABLE
CUSTOMER
INPUTS
SPAN
PHONE
(MODEM)
SITE I/O
CABLE
RGPS DAISY CHAIN CABLE
RGPS DAISY CHAIN CABLE
RGPS DAISY CHAIN CABLE
NOTE 1: EACH BTS MAY CONTAIN UP TO
FOUR SC340 UNITS.
NOTE 2: A MAXIMUM OF 12 BTS MAY BE
INTERCONNECTED WITH A MAXIMUM
DASIY CHAIN CABLE LENGTH OF 600M
BETWEEN EACH BTS. A MAXIMUM OF
SEVEN BTS MAY BE INTERCONNECTED
WITH A MAXIMUM DAISY CHAIN CABLE
LENGTH OF 1KM BETWEEN EACH BTS.
MAXIMUM
DISTANCE IS
1 KM (SEE
NOTE 2)
BTS 1
(SEE NOTE 1)
BTS 3
(SEE NOTE 1)
BTS 4
(SEE NOTE 1)
UNIT 4
UNIT 3
UNIT 2
UNIT 1
UNIT 3
UNIT 2
UNIT 1
UNIT 2
UNIT 1
UNIT 1
X
X
X
BTS 2
(SEE NOTE 1)
MAXIMUM
DISTANCE IS
1 KM (SEE
NOTE 2)
MAXIMUM
DISTANCE IS
1 KM (SEE
NOTE 2)
UPSTREAM
UPSTREAM
UPSTREAM
DOWNSTREAM
DOWNSTREAM
DOWNSTREAM
PRIMARY
SURGE
SUPPRESSOR
PRIMARY
SURGE
SUPPRESSOR
PRIMARY
SURGE
SUPPRESSOR
5