Model: USR56MA

Custom Orders Only
Please contact John Potomis for questions or information at 847.874.2345 or john_potomis@usr.com

Specifications & Standards

General

• V.92, V.90, V.34, V.32bis, V.32, V.22bis, V.23, V.21, Bell 103, and Bell 212A
• V.42/MNP 2-4 error correction, V.44 & V.42 bis/MNP 5 compression, V.42 Selective Reject
• V.80 Synchronous Data Interface
• Voice: V.253, V.250, Telephone Answering Machine (TAM)
• Fax: V.17, V29, V.27ter, V.21; T.31 (Class 1)
• SDLC/HDLC for point-of-sale applications
• Type 1/2 Caller ID^‡ and distinctive ring

Physical

• DTE Interface: RS232/20 Pin Header
• Phone Line Interface: Mini RJ connector

Environmental

• Temperature: Operating Temperature conditions: 0 to 60 degrees C, Non-Operating Temperature conditions: -20 to 70 degrees C
• Humidity: Operating Humidity conditions: 10% to 90% non-condensing, Non-Operating Humidity conditions: 5% to 95% non-condensing

Electrical Characteristics

PIN Number	PIN Name	Direction	Level	Tolerance
2, 12	GND	NA	NA
20	VCC	NA	3.3V	Min 3.0V Max 3.6V
4	TXD	Host -> Modem	3.3V	5V tolerant
5	DCD	Modem -> Host	3.3V
6	DTR	Host -> Modem	3.3V	5V tolerant
7	RI	Modem -> Host	3.3V
8	RTS	Host -> Modem	3.3V	5V tolerant
9	RXD	Modem -> Host	3.3V
10	CTS	Modem -> Host	3.3V
11	DSR	Modem -> Host	3.3V

Regulatory

• FCC approved (Part 15 Class B/Part 68)
• CE approved (Class B)

Power Consumption

• Typical: ≈310mW active, ≈450mW max

Package Dimensions

• 8.27 x 5.83 x 1.77 in (210 x 148 x 45 mm)

Product Dimensions/Weight

• 2.71 x 1.02 x .39 in (69 x 26 x 10 mm)
• .02 lb (9.07 g)

Minimum System Requirements

• Asynchonous Serial Interface
• Analog Phone Line

Power Supply Requirements

• Voltage: 3.3 ± 0.3V
• Maximum supply current: 135 mA

Package Contents

• 16 USRobotics V.92 Embedded Serial Modems per box

Warranty Information

2-year limited manufacturer warranty from date of purchase. Click here for full warranty information.

* Capable of receiving at up to 56 Kbps and sending at up to 48 Kbps (or 31.2 Kbps with V.90 server). Due to FCC regulations on power output, receiving speeds are limited to 53.3 Kbps. Actual speeds may vary. V.92 and V.90 features require compatible phone service and support from your Internet Service Provider (ISP). USRobotics modems featuring V.92 enhancements are backward compatible and will negotiate the highest possible speed when connecting to an ISP.
† Advanced fax functionality may require installation of bundled software.
§ Time measured from start of modem tones, amount of time may be slightly longer with error control enabled.
‡ Caller ID and distinctive ring require service from your local phone company. Caller ID may not be supported in some countries.