User's Manual Part 2

PN 8100-40 Help Hot Line (U.S. only): 1-800-530-9960 9-17
620004-0 Rev. E
Installing the Main Hub
Figure 9-6 5-port Daisy-Chain Alarm Cable
To connect 2 to 4 LGCell systems to a base station’s alarms:
1. Connect the alarm cable’s J2 connector to the DIAGNOSTIC 1 port on the first Main
Hub.
2. Connect the alarm cable’s J3 connector to the DIAGNOSTIC 1 port on the second
Main Hub, and so on.
3. Connect the J7 connector to the lowest numbered unused male connector (J2
through J6).
For example, when connecting 2 LGCell Main Hubs, connect J7 to J4 and leave
J5 and J6 unterminated.
Pin 7
Pin 9
X
1 meter (3 feet)
Pins 7 and 9
J2
Pin 7
Pin 9
X
J3
Pin 7
Pin 9
X
J4
Pin 7
Pin 9
X
J5
Pin 7
Pin 9
X
J6J7
DB-9 male
Pins 7 and 9
DB-9 male
Pins 7 and 9
DB-9 male
Pins 7 and 9
DB-9 male
Pins 7 and 9
DB-9 male
Pin 7
DB-9 female
J1
7
9
Pin 7
Option 1: Connect 5 units to cable using J2
through J6; J7 is unused.
OR
Option 2: Connect four units to first cable
using J2 through J5, connect J6 to an addi-
tional daisy-chain cable’s J1 connector; J7
is unused.
OR
Option 3: Connect fewer than four units to
cable and terminate the circuit by connect-
ing the J7 connector into the lowest num-
bered unused male connector.
LGCell Main Hub
Base Station
DIAGNOSTIC 1 Port
(an adapter
cable may be
required)
LGCell Main Hub
DIAGNOSTIC 1 Port
LGCell Main Hub
DIAGNOSTIC 1 Port
LGCell Main Hub
DIAGNOSTIC 1 Port
LGCell Main Hub
DIAGNOSTIC 1 Port