NEC Australia Pty Ltd
Xen Master & Xen Axis
5 - 142
Installing Electronic Telephone Units
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4.11
SLI(4)-U13 ETU
4.11.1
Description
The SLI(4)-U13 ETU provides an interface for Single Line
Telephones and for analogue voice mail units. It has a
built-in ringing generator (RSG) and supports a maximum
of four Single Line Telephones or analogue Voice Mail
ports. Refer to Figure 5-25 SLI(4)-U13 ETU.
This ETU also provides circuitry for loop status detection,
talk battery, sending ringing signals, message waiting, and
loop disconnect for dial pulse signal detection.
Note: The PBR circuit in the CPUB( )-U13 ETU or the PBR (
0
)-
U13 ETU is required with Voice Mail or DTMF Single Line
Telephones.
4.11.2
Installation
A maximum of 23 SLI(4)-U13 ETUs can be installed in the
Xen Master system (maximum of 92 ports) in slots S1~S8
in the first, second or third KSU.
A maximum of 5 SLI(4)-U13 ETUs can be installed in the
Xen Axis system (maximum of 10 ports) in slots S3~S7.
Figure 5-25 SLI(4)-U13 ETU
