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# MAX Technical Specifications

Battery
Power requirements
Environmental requirements
Alarm relay operating specifications

The MAX contains an internal lithium battery that should be handled only by trained engineers authorized by Ascend. The MAX uses ac or dc power. Environmental factors, such as temperature and humidity, must be considered, as well as specifications for operation of the alarm relay.

## Battery

The MAX contains an internal 3V lithium battery. The normal operating life of the battery exceeds five years.

Only trained engineers authorized by Ascend should open the MAX unit's case for testing, maintenance, installation, or any other purpose. Furthermore, only trained engineers should replace MAX components.

Warning: The battery can explode if incorrectly replaced. Replace the battery only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer's instructions.

ATTENTION: IL Y A DANGER D'EXPLOSION S'IL Y A REMPLACEMENT INCORRECT DE LA BATTERIE. REMPLACER UNIQUEMENT AVEC UNE BATTERIE DU MÉME TYPE OU D'UN TYPE RECOMMANDEÉ PAR LE CONSTRUCTEUR. METTRE AU RÉBUT LES BATTERIES USAGÉES CONFORMÉMENT AUX INSTRUCTIONS DU FABRICANT.

## Power requirements

Table B-1 describes the ac source power requirements for the MAX 6000

Table B-1. MAX 6000 ac source power requirements

#### Element

#### Value

Input Voltage

100-240 Vac

Input Power

450W maximum

Fuse

250 V, 6.3 A, Type T, 5 x 20 mm

Frequency

50/60 Hz

Current

5 A

.

Table B-2 describes the dc power requirements for the MAX 6000.

Table B-2. MAX 6000 dc source power requirements

#### Element | #### Value
--- | ---
Input Voltage | -48 Vdc
Input Power | 450 W maximum
Fuse | 15A, slow-blow, 250 V (two fuses, one per input)
Current | 8.3 A

The MAX stores its configuration profiles in battery-protected memory. When you power off the MAX, the profiles remain in tact.

Note: Use a protected ac power source, or add surge protection between the power source and the MAX.

## Environmental requirements

For best results, you should house the MAX in a room with constant temperature and humidity. In general, cooler environments are better. An operating temperature of 32° to 104° Fahrenheit (0° to 40° Celsius) is recommended. Storage temperatures of -40° to 176° Fahrenheit (-71.4° to 80° Celsius) are acceptable.

Humidity should be high enough to prevent accumulation of static electricity, but low enough to prevent condensation. An operating relative humidity of up to 90% is acceptable.

You can operate the MAX at altitudes of 0 to 14800 ft. (0-4500 m).

The MAX base system weighs 15 lbs (6.81 kg). A fully loaded system weighs 30 lbs (13.6 kg). The MAX has these dimensions: 3.0" x 17" x 12" (8.9 cm x 43.2 cm x 30.5 cm).

The base system of a redundant power standard MAX or MAX 6000 weighs 41 lbs (18.6 kg); a fully loaded system weighs 56 lbs (25.5 kg). The redundant power MAX has the dimensions 7.0" x 17.5" x 14.75" (17.8 cm x 44.5 cm x 36.875 cm).

## Alarm relay operating specifications

On the back panel of the Ascend unit is a pair of alarm-relay terminal-block contacts that remain open during normal operation. The contacts close during loss of power, hardware failure, or reset.

The maximum rated load for the alarm relay is:

- 1 amp at 30 Vdc

- 0.6 amp at 60 Vdc

- 0.6 amp at 60 Vac

Caution: To reduce the risk of electric shock, do not connect the alarm circuit to a device with an output exceeding 30 Vrms, 42.4 Vpeak, or 60 Vdc.

Copyright © 1998, Ascend Communications, Inc. All rights reserved.