Users Manual Part 1

4.5.1
Grounding Connection
Various cabling from the equipment cabinet to external equipment is made through the MTS Junction
Panel located at the top-rear of the equipment cabinet. The Junction Panel is accessed from the top of
the cabinet.
NOTICE: Depending on system configuration, not all connector locations on Junction Panel are
populated.
Cabinet grounding wires may have been installed prior to the cabinet installation. If so, follow the
instructions below.
If grounding wires have not yet been installed, refer to Grounding Requirements on page 88 in Site
Preparation
on page 63.
Single-point ground method (where each cabinet is grounded to master ground using its own ground
wire) shall be used. The cabinet shall use green (or green-yellow) insulated wire with a minimum size
of 16 mm
2
CSA (#5 AWG) for ground wire.
The MTS is connected to the site ground through the M10 station ground point located on the junction
panel.
For MTS LiTE, see Figure 26: Station Ground Point on the MTS LiTE Junction Panel on page 103.
For MTS 2, see Figure 27: Station Ground Point on the MTS 2 Junction Panel on page 103.
For MTS 4, see Figure 28: Station Ground Point on the MTS 4 Junction Panel on page 104.
This connection is essential for the protection of the equipment against lightning induced surges.
If the specified wire size is not available, use the next-larger available wire size. During the installation
of cabinet ground wires, ensure to check any factory-installed internal ground connections for
tightness.
NOTICE: Figure 27: Station Ground Point on the MTS 2 Junction Panel on page 103 and
Figure 28: Station Ground Point on the MTS 4 Junction Panel
on page 104 depict the newer
version of the MTS Junction Panel. There may be small differences in older configurations.
6802800U74-AP
Chapter 4: Hardware Installation
102