Installation
3-32
HiPath1120, Installation Guide
Installing an external Audio Source
3.11
Installing an external Audio Source
The HiPath 1100 systems provide connections for audio devices, such as radios, tuners, CD,
MD, and others.
●
HiPath 1120
The audio source must be connected to a music optional module using an RCA Connector
in slot X1 (see Figure 3-14 on page 3-29).
3.12
Installing a TFE - entrance telephone interface
3.12.1
Protection of external lines and extensions
The primary protection of external lines and extensions must be provided by grounding the
system through a separate cable (minimum section = 2.5 mm
2
) set up exclusively for the
protection of the telephone system. The secondary protection of external lines and extensions
is between wires A and B.
For primary protection for a distribution box that is external to the PABX use a MPT250 shield
with two PTCs (A and B wires) for overcurrent protection along with a gas capsule connected
to the ground wire through a separate cable that is independent of the cable used for grounding
the power supply.
The connection between the HiPath 1100 system and the distribution box must be made using
multipair cables, preferably foil shielded. This type of flat cable has a special grounding wire that
must be connected to the safety ground, but only at the distribution box end
.
Figure 3-16
Protection and grounding connection diagram
For the RSA version the primary protection for external lines and extensions must
be provided according to local regulations.
