Tadiran Telecom Coral IPx 800 Series, Installation Procedure And Hardware Reference Manual

Page: 135 / 400

External Connections
5-9
Ext
ernal Eq
uipm
ent
5
Generally, trunk circuits are connected to the Coral IPx 800 system simply by
cross-connecting the trunk interface circuit of a Coral trunk card to the point of
demarcation where the trunk circuits appear from the telephone utility company
(telco). For more specific data regarding all trunk types supported by the Coral IPx 800
system, refer to the Coral Service and Peripheral Cards Installation Manual.
Protective devices are regularly provided by the telecommunication connections on
circuits originating outside the building. Determine if the telecommunication
connection protective devices meet the specifications described in the following
section:
Protection Devices on page 5-11
. If not, install secondary protector devices that
meet these specifications. To be effective, the protective devices, whether telco or
customer provided, must be grounded to the same ground point as the Coral system.
Figure 5-4
illustrates typical trunk circuit wiring from building entrance to the Coral
IPx 800 system.
Figure 5-4 Typical Trunk
Circuit Wiring Diagram
2 Trunk Circuits
CORAL SYSTEM
I/O Champ
Connector
RJ-21X or Similar
Interface
Bridging
Clips
Earth
Ground
Ground Bus
Ground
Terminal
L
igh
tning &
Su
rge
Pr
o
tect
o
r
TELCO
Demar
cati
o
n
(Network
Interface)
TE
LCO
Ci
rcuit
Feed
Block
COR
A
L
I/O Block