NEC Australia Pty Ltd Xen Master & Xen Axis
4 - 58 Installing KSUs
A6-324000-642-01 – Release 4.0
May 2001
2.5 Power Failure Transfer
The Power Failure Transfer relay is located in the KSU. When
selecting a Single Line Telephone for power failure transfer, make
sure it matches the CO line dialling type (10 pps, 20 pps, or DTMF)
where it is connected. Refer to Figure 4-1 Xen Master - Power
Failure Transfer Connection, Section 2 - 2.6 Fax CO Branch
Connection, Table 4-2 Power Fail Transfer Connections - Xen
Master and Figure 4-2 Xen Axis - Power Failure Transfer
Connection.
M
D
F
M
D
F
C
O
I
S
L
I
Relay (on KSU)
Tip
Ring
Tip
Ring
T
E
L
C
O
SLT
Note: The relay is shown with the power ON.
Figure 4-1 Xen Master - Power Failure Transfer Connection
M
D
F
M
D
F
Tip
Ring
AMP1
50
Tip
Ring
25
T
E
L
C
O
SLT
Figure 4-2 Xen Axis - Power Failure Transfer Connection
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