Technical Specifications - Paradyne 3172 Operator's Manual

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overview
The technical specifications for the Models 3172
and 3174 DSU/CSUs are listed in Table B-1.
Specifications
POWER REQUIREMENTS
Typical:
AC Power Module
Optional:
+24 Vdc
– 48 Vdc
– 48 Vdc Redundant
POWER CONSUMPTION
AND DISSIPATION
DTE Drop/Insert INTERFACE
Physical Interface
Framing Format
Coding Format
NETWORK E1 INTERFACE
Physical Interface
Framing Format
Coding Format
Signal Recovery Capability
Typical Drive Distances:
75 ohm, coaxial cable
120 ohm, 22 AWG (0.6 mm)
120 ohm, 24 AWG (0.5 mm)
120 ohm, 26 AWG (0.4 mm)
3170-A2-GB20-30

Technical Specifications

Table B-1
Models 3172/3174 DSU/CSUs Technical Specifications
Refer to the labeling on the ac power module for input requirements
+20 Vdc to +32 Vdc, 0.50A
–38 Vdc to –60 Vdc, 0.25A
–38 Vdc to –60 Vdc, 0.25A
16.0 watts, 55.0 Btu per hour at 115 volts (ac power); 12.0 watts, 41 Btu per hour
at +24 and – 48 Vdc (dc power)
DB15 socket for 120 ohm twisted pair (balanced)
CRC-4, non-CRC-4
AMI, HDB3
BNC pair for 75-ohm coaxial cables (unbalanced) or
RJ48C for 120-ohm twisted pair (balanced)
CRC-4, non-CRC-4
HDB3
43 dB of cable attenuation at 1024 kHz
3.4 km
2.3 km
1.8 km
1.5 km
March 1999
(1 of 2)
Criteria
B
B-1
B-1