Cabletron Systems MicroMMAC-44T Guía de usuario descargar pdf (Pagina 34)

REQUIREMENTS/SPECIFICATIONS

2-15

to the average power measurement to correctly compare the average power

values measured to the values listed above (i.e., -33.5 dBm average + 3 dB

= -30.5 dBm peak).

2.5 GENERAL SPECIFICATIONS

Cabletron Systems reserves the right to change the following operating

speciﬁcations at any time without notice:

• Data Buffer Memory (RAM): 8 MB (Upgradeable)

• Internal Processor: Intel 80C960CF at 24 MHz

• Controller: Texas Instruments TMS380C26

• Static RAM: 128 KB with battery back-up

• EPROM: 128 KB

• FLASH MEMORY: 2 MB (Upgradeable)

2.5.1 Power Supply Requirements

NOTE: The MicroMMAC-T has a universal power supply which will

accept input power between 85 and 264 VAC, 47-63 Hz.

The power supply has two outputs of +5 volts and +12 volts. Maximum

output power is 125 watts and the minimum efﬁciency is 65% under all

conditions of line at full load. The minimum and maximum load current

from each output is shown below.

2.5.2 Environmental Requirements

Operating Temperature: +5° to +50°C

Table 2-10.

Output Min. Load Max. Load Max Power

+ 5 Volts 1.00 Amps 15 Amps 75 Watts

+12 Volts 0.15 Amps 4 Amps 48 Watts

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 104 105

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Cabletron Systems MicroMMAC-44T Guía de usuario Pagina 34