Communications Card

ION 7500 / ION 7600 User’s Guide	Communications Card

Installation Instructions

DANGER

The components inside the meter are extremely sensitive to electrostatic discharge. To prevent damage to the unit, wear an anti-static wrist strap at all times when working inside the unit. Failure to use proper equipment during servicing will void the meter’s warranty.

The following steps should be taken before inserting a Comm Card into the meter:

1.Turn off all power to the meter.

2.Open all PT fuses (or direct voltage input fuses). Close all CT shorting blocks.

3.Disconnect the Line and Neutral (or DC power) wires from the Control Power inputs of the unit.

4.Disconnect all other wiring (or power off all other circuits) which may present potentially hazardous voltage levels to the unit, such as connections to the relay outputs, status inputs, etc.

5.Ensure that all cables still connected to the meter are NOT live.

Removing the Existing Communications Card

The meter’s Comm Card can be removed while the unit is still mounted in its switchgear panel (or other mounting location).

1.Remove the two screws and lockwashers on the Comm Card’s backplate (refer to the diagram).

2.Remove the nut from the chassis ground lug.

3.Grasp the Comm Card by the sides of its backplate and pull it out of the socket, away from the chassis.

4.Place the Comm Card in an anti-static wrapping.

Installing the New Card

The Comm Card consists of a circuit board with an attached polarized CHAMP connector on the component side. Install the communications card as follows:

1.Hold the communications card by the sides and slide it into the base unit with the component side facing up.

2. Slide the edge of the circuit board down the slots along each side of the chassis.

3. Align the CHAMP connector with the socket and press the Comm Card firmly into place. The socket and the connector are polarized, so the pins in the connector will not fit into the socket if the card is not oriented correctly. The communications card is securely inserted into the socket when the backplate of the Comm Card meets the chassis of the meter.

Chapter 6 - Hardware Reference

Page 177

7500, 7600 specifications

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Multi-Tech Systems 7500 Removing the Existing Communications Card, Installing the New Card

Models: 7500 7600