System Ground; Connecting Stations - HYBREX GDS-600 Installation Manual

System Ground

It is strongly recommended that the system be grounded by connecting a heavy, insulated copper wire (e.g.,
14AWG or larger) between the grounding bolt on the right-lower side of the cabinet and an earth ground. Without
this System Ground if the power cable becomes dislodged there is no protection against lightning damage to Co
lines and warranty will be voided.
Do not connect the grounding wire of the KSU to a computer, telex, or any other external device.

Connecting Stations

The station cabling for the GDS-600 should be a home run from the jack to the telephone room. The termination
should be at conventional 66 type connecting blocks or Krone or directly to the provided station connectors. One
pair twisted wiring is required for each station location. Attention to proper cabling will go a long way towards a
successful installation and minimizing service calls after installation.
Each extension MUST be wired individually back to the inner and outer
pairs of the DDK connector on the station card and not paralleled external
to the system with one pair back to the DDK connector. This will ensure
that the protection circuit on the output of the STU card will operate to
isolate each extension from adverse effects of plugging/unplugging
extensions. If this requirement is not followed on the G2-STU2 then
stations will not work at all as all phones are "A" phones.
Some guidelines for running station cable are as follows:
 Avoid running cable parallel to fluorescent light fixtures or electrical lines not in conduit. If these obstacles
are unavoidable, run the cable at right angles across them.

Do not run station cable inside conduit already occupied by electrical wiring.
 Do not run station cable near equipment with electric motors or strong magnetic fields.
 Do not place station cable on the ground where it can be stepped on or rolled over by office furniture or
office equipment.
Issue 4.1.1 - October 2014