Sgrd/Fgrd Connection - Paradyne Compshere 3000 Series Installation Manual

COMSPHERE 3000 Series Carrier

SGRD/FGRD Connection

Grounding reduces interference. To connect frame
ground (FGRD) to signal ground (SGRD) for all DSUs
and modems in the carrier, install the provided wire strap
between the SGRD and FGRD terminals at the rear of the
carrier. The terminals are an insulation displacement type,
with a slot designed to cut through the insulation on the
wire.
P23
P21
NOTE
SGRD must not be connected to
FGRD when leased modems
are installed in the carrier.
"
Procedure
1. Use pliers to pull the plastic covers off the
SGRD (E4) and FGRD (E3) terminals.
Plastic Cover
3-14
SGRD
E4
ALARM
FGRD
E3 E1 E2
496-14805-01
E 2
496-14656a-01
2. Insert one end of the strap into the SGRD
terminal. It is not necessary to strip the wire.
Wire End
3. Fit the strap into the slot in the terminal. Replace
the plastic cap on the terminal, fitting the strap
into the matching slot cut lengthwise in the cap.
Cover Slot
4. Use a Phillips screwdriver to push the cap firmly
onto the terminal. As you seat the cap, the
terminal cuts through the insulation on the strap
and makes contact.
5. Insert the other end of the strap into the FGRD
terminal and repeat Steps 3 and 4.
July 1999
Tube Slot
Hollow Tube
E 2
496-14656b-01
E 2
496-14656c-01
495-14656d-01
3000-A2-GA31-D0