Multitech MTSMC-G-F1 Specifikace stáhnout pdf (Strana 23)

Chapter 3 – Electrical Characteristics

Wireless ModemModule GSM/GPRS Developer’s Guide 23

Table 3-11: Reset Signal Pin Description

Signal Pin Number I/O I/O Type* Description

~RST 19 I/O Module reset

* See “Table 3-2: Operating Conditions” in section on the 50-pin Connector Description.

Table 3-12: Reset Signal Electrical Characteristics

Parameter Min Max Unit

Input Impedance ( R ) 4.7 kilo-ohms

Input Impedance ( C ) 10 nanofarads

Table 3-13: Reset Signal Operating Conditions

Parameter Min Max Condition

T-

1.1 V 1.2 V

T+

1.7 V 1.9 V

0.4 V I

= -50 microamperes

2.0 V I

= -50 microamperes

T-

, V

T+

hysteresis level

Flashing LED

The flashing LED signal is used to indicate the working mode of the ModemModule.

Table 3-14: Flashing LED Pin Description

Signal Pin Number I/O I/O Type* Description

Flashing LED 11 I/O CMOS/2X Working mode

indication LED

* See “Table 3-2: Operating Conditions” in section on the 50-pin Connector Description.

Table 3-15: LED and ModemModule Status

LED Indication ModemModule Status

OFF Download mode or switched OFF.

Permanent Switched ON, not registered on the network.ON

Flash Switched ON, registered on the network.

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 51 52

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Multitech MTSMC-G-F1 Specifikace Strana 23