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Chapter 1 - Introduction
1.6 SpecificationsModel Number: MT56DSU-S
Device Operation: combined DSU and CSU
Data Rates:
Synchronous 56 Kbps (Data port and line)
Interfaces:
Data (RS232) DB25S (female) - Data port
Data (V.35) DB25S (female) - Data port with an adapter cable
Line (DDS) RJ-48 8-position keyed jack - Line
Power Requirements: 115V AC, 50-60 Hz, 2 Watts
Temperature: 32 to 120° F (0 to 50° C)
Humidity: 20 to 90% (non-condensing)
Dimensions: 1" H x 4.125" W x 5.5" D
2.5 cm H x 10.8 cm W x 14.2 cm D
Weight: 8 oz. (224 g)
Certification: FCC Part 15 Class B
FCC Part 68
UL Listed
Compatibility: AT&T Pubs 62310
FIC Codes: 04DU5-56
USOC Jack: RJ-48S
Transmitter/Receiver:
Modulation bipolar return to zero (BRZ)
Transmit Level 1.4V peak (+6dBm) into 135 Ohm at 56 Kbps
Output Impedance 135 ohms
Receive Levels +6 to -45 dBm
Input Impedance 135 ohms
Delay Times (in secs.) RTS/CTS DCD on DCD off
0.4 0.3 0.2