Multitech MTSMC-C-N3 Manuel d'utilisateur Page 8
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CHAPTER 3 –SPECIFICATIONS
SocketModem CDMA MTSMC-C2 Device Guide
8
Mounting Hardware
The board has three mounting holes at corners. Use #4 or M3 hardware for mounting the SocketModem to the
board. Refer to the Mechanical Drawings for more information.
Recommended Parts
Manufacturer
Part
Part Number
PEM PennEngineering
Surface Mount Standoff
SMTSO-M3-4ET
RAF Electronic Hardware
3/16” Hex Female Standoff
2051T-440-S-12 Zinc
RAF Electronic Hardware
4.5mm Hex Female Standoff
1251-3005-S-12 Zinc
Device Reset
The SocketModem is ready to accept commands after a fixed amount of time (“X” Time) after power-on or reset.
Model
Time Constant
"X" Time
Minimum Reset Pulse1
MTSMC-C2
250 ms
10 seconds
200 us
1
The SocketModem may respond to a shorter reset pulse.
RS-232 Signal DC Electrical Characteristics
Units: Volts
Applies to the following pins:
Pin
Signal Name
Pin
Signal Name
J33
-RTS
J37
-DSR
J34
-RXD
J38
-CTS
J35
-TXD
J39
-DCD
J36
-RI
J40
-DTR
Parameter
Minimum
Maximum
3.3 Volt Powered
Input Low Level
0
0.55
Input High Level
1.5
3.3
Output Low Level
0
0.55
Output High Level
2.35
3.3
5 Volt Powered
Input Low Level
0
0.8
Input High Level
2.3
5
Output Low Level
0
0.55
Output High Level
3.7
5
Absolute Maximum Rating
VCC Voltage (Survival) -0.3V to +5.5V
- SocketModem® Cell CDMA 1
- SocketModem® iCell CDMA 1
- Contents 3
- Chapter 1 – Device Overview 4
- Documentation 5
- MTSMC-C2 Builds 6
- Chapter 3 – Specifications 7
- Mounting Hardware 8
- Device Reset 8
- Pinout Specifications 9
- Pin Availability by Build 10
- Power Measurements 10
- MTSMC-C2-IP 11
- MTSMC-C2-GP 11
- FCC Grant Parts 22 and 24 12
- Industry Canada 12
- LED Interface 13
- RF Performances 14
- Transmitter Features 14
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