NEC Univerge SV8100 System Hardware Manual page 178

UNIVERGE SV8100
System Hardware Manual
CHUYÊN CUNG CẤP TỔNG ĐÀI NEC
The PZ-4COTE consumes four trunk ports ranging between ports
001~200. The CN2 connector provides connection to four analog trunk
ports, which are not polarity sensitive (tip-to-tip, ring-to-ring). The
power failure circuits (CN3), are not polarity sensitive neither.
•
When using the CD-4COTA blade for loop start
trunks, the PBX ground must
described in Chapter 3 Installing the SV8100
Chassis,
Grounding on page 3-33 or the trunks will not
function correctly.
•
When
CD-4COTA blades, note the position of the Power
Failure connector (CN3). Do not confuse this
connector as the trunk connector (CN2). Do not wire
an RJ-11 directly to the CD-4COTA interface. Use
the appropriate RJ-61 wiring when connecting to
the CD-4COTA.
•
Switching from Loop Start to Ground Start is set in
system programming.
•
Do not wire an RJ-11 directly to the CD-4COTA
interface. Use the appropriate RJ-61 wiring when
connecting to the CD-4COTA.
Table 4-34 PZ-4COTE Maximum Upgrade Capacities
maximum capacities for the PZ-4COTE blades when they are upgraded.
Table 4-34 PZ-4COTE Maximum Upgrade Capacities
19" Chassis 19" Chassis
with CPU without CPU
5
section 2.5.5
connecting the RJ-61
19" Chassis x4
6 23
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be connected as
Install 19" Chassis
cables to
provides the
Networked
Chassis
25
4-61
the