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(4) Control Drawing of USB (Type A) Interface (USB1)

The information below concerns the use of the USB interface used in Class I, Division 2, Groups A, B, C,

and D hazardous locations (from Doc No. 3910017-USB).

Notes:

1. Nonincendive Circuit Parameters:

USB interface:

Voc = 5.25 V

Isc = 0.7 A

Ca = 16 µF

La = 10 µH

2. Selected Associated Nonincendive Field Wiring Apparatus shall satisfy the following:

3. If the electrical parameters of the cable are unknown, the following values may be used:

Capacitance = 60 pF/ft

Inductive = 0.20 µH/ft

4. Nonincendive Field Wiring must be installed in accordance with article 501.10(B) of the National

Electrical Code ANSI/NFPA 70.

5. Nonincendive Field Wiring Apparatus shall not contain or be connected to another source of power.

(5) USB (mini-B) Interface (USB2) is for temporary connection only during maintenance and setup of the

device. Do not use, connect, or disconnect unless area is known to be non-hazardous. Connection or dis-

connection in an explosive atmosphere could result in an explosion.

Associated Nonincendive Field Wir-

ing Apparatus for USB (Type A)

interface of the GP-4100 Series

Nonincendive Field Wiring Appara-

tus

Voc  Vmax

Isc  lmax



Ci + C cable



Li + L cable

USB Pin Description

1. Vcc

2. D-

3. D+

4. GND

(See Note 1 for details)

Shield GND

Nonincendive Field

Wiring Apparatus

1 2 3 4

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 72 73

Brak uwag

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