Mitel SX-200 Documentation page 479

Superswitch electronic private automatic branch exchange epabx

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SECTION 91 OS/91 1 O-096-180-NA

9. ELECTRICAL CHARACTERISTICS

deep, and weighing approximately 43 kg (95 lb). The charging unit

measures 127 mm (5 in.) wide, 178 mm (7 in.) high, 355 mm (14 in.)

deep and weighs 6.4 kg (14 lb).

In the event of power failure with no reserve power available, or

if the reserve power capability period is exceeded, the PBXs can

be arranged to automatically connect a maximum of 12 Central Office

trunks (six trunks for the SX-100 system) to preselected extensions.

In addition to the above power requirements and to prevent

loss of customer data in the event of a power failure, the

memory holding the data (non-volatile) is equipped with a reserve

power supply (Ni-Cad batteries) mounted on the shelf card.

This Part gives details of the electrical characteristics of the

power supplies, signaling and supervisory tones, and time-out

information.

Power Supplies

A summary of the electrical power characteristics is detailed in

A summary of the signaling and supervisory tones provided by

the PBX is shown in Table 9-2. Part 10 provides data in regards

to dialing and supervisory parameters. -The

1. Tolerance of call progress tone levels is 1.5 dBm.

2. Individual tones of any compound tone are within 1 dB of

3. Tolerance of individual tones are 1% of the frequency stat-

Table 9-3 lists the time-out information and shows the various

time-out delays which can occur under specific conditions.

following notes apply to

Chapters

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