Telecom disturbances

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Table 3 shows the most commonly used worldwide standard for ESD. Generally, Level 4 is

required. Such tests appear in the Telcordia GR1089 standard and do apply to equipment

port type 4.

The next section presents the protection concept of the LCP152xx used to protect short line

SLICs with a single battery voltage.

Table 2.

Telecordia GR1089 2nd level intrabuilding power crossing test

(equipment port type 4)

Test

Test for

Voltage

Current

Duration

Test

1.

M: metallic; L: longitudinal

1

Secondary contact

120

25

15 minutes

M (on tip and ring), L

Table 3.

IEC61000-4-2 ESD surge standard

Contact discharge

Air discharge

Level

Test voltage (kV)

Level

Test voltage (kV)

1

212

2

424

3

638

48

4

15

1.

“X” is a level to be defined.

Special

X(1)

Special