User's Manual

RGPS Cabling for Multiple BTS Sites – continued
DRAFT
SC300 1X BTS Hardware Installation, ATP, and FRU Procedures
JAN 2002
4-30
Figure 4-18: Site I/O Interface Cabling for RGPS (Synchronous) Configurations
CUSTOMER
INPUTS
SPAN
RGPS
PHONE
(MODEM)
SITE I/O
INTERFACE
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 SYNC CABLE
RGPS SYNC CABLE
RGPS SYNC CABLE
NOTE 1: EACH BTS MAY CONTAIN UP TO
FOUR SC300 UNITS.
NOTE 2: A MAXIMUM OF 12 BTS MAY BE
INTERCONNECTED WITH A MAXIMUM
DAISY 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
FOR INSTALLATIONS EQUIPPED WITH
SURGE PROTECTION.
MAXIMUM
DISTANCE IS
1 KM (SEE
NOTE 2)
BTS 1
(SEE
NOTE 1)
BTS 3
(SEE NOTE 1)
BTS 4
(SEE
NOTE 1)
UNIT 1
UNIT 1
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
SITE I/O
INTERFACE
SITE I/O
INTERFACE
SITE I/O
INTERFACE
UNIT 301 UNIT 201 UNIT 101 UNIT 1
UNIT 201 UNIT 101
UNIT 1
UNIT 101
ÇÇ
ÇÇ
ÇÇ
ÇÇ
ÇÇ
ÇÇ
ÇÇ
ÇÇ
ÇÇ
ÇÇ
Ç
= SURGE PROTECTION DEVICE (OPTIONAL)
SITE I/O
SITE I/O
SITE I/O
SITE I/O
X
X
X
4