Multi-Tech Systems ZDX Series manual Rack Mounting Installation Procedure, Powering Up

Chapter 2 – Installation

Rack Mounting Installation Procedure

If the chassis is installed in a closed or multi-rack assembly, the operating temperature of the rack environment may be greater than the ambient temperature. Be sure to install the chassis in an environment that is compatible with the maximum rated ambient temperature. See Technical specifications in Chapter 1.

When mounting the equipment in the rack make sure mechanical loading is even to avoid a hazardous condition, such as loading heavy equipment in the rack unevenly. The rack should safely support the combined weight of all equipment it supports.

When connecting the equipment to the supply circuit, be sure to check equipment nameplate ratings to avoid overloading circuits that may cause damage to over-current protection devices and supply wiring.

Slots and openings in the cabinet are provided for ventilation. To ensure reliable operation of the product and to protect if from overheating, maintain a minimum of 1 inch clearance on the tops, and 1 inch clearance on the sides.

Powering Up

Once power is applied to the rack, the modems perform a diagnostic self-test, indicated by the speed LEDs flashing in sequence for approximately two seconds, then the 19 or 28 (depending on model of ZDX modem) should light. If none of the modems have power to them, check the power cord connection and that the AC outlet is live. If one or more of the modems do not power up, check the power connection to that modem.

If one of the green power supply LEDs on the front of the rack is not on, then one of the redundant power supplies is defective.

Models with AC power inputs are intended to be used with a three-wire grounding type plug—a plug that has a grounding pin. Equipment grounding is to ensure safe operation. Do not defeat the grounding means and verify device is reliably grounded when mounted within a rack.

Multi-Tech Systems, Inc. “ZDX”-Style Device Rack – PN S000338A 7