Description

Technical Specification

Module No 1:
Data rate: 300/600/1200/1800 bits
Data format: synchronous and asynchronous

Data interface: TTL and V24/RS232C
Data patterns: Programmable 24 bit, Pseudo random 64 bit, External data
Data coders: Manchester; 1 bit differential; Dibit; Tribit; 2 bit differential
Sine carriers: 1200Hz, 0/90°; 1800 Hz
Analogue signals synchronous with digital signals, for easier wave form examination
Error rate meter with numerical digital display
Interface for constellation diagram
Channel simulator: adjustable attenuation Noise generator: adjustable amplitude
Rapid modifications to circuits using jumpers
Fault simulation: Possibility to insert 10 faults
Test and interconnection points,Ø2 mm
Rapid modifications to circuits using jumpers

Module No 2:
Sampling frequency: 8 kHz
Low pass filters: active, 4 pole; cut off frequency 3.4 kHz
PLL reception clock recovery

Signal sampler in reception with adjustment of the sampling pulse phase
2 PCM CODECs with “A” and “µ” coding
2 CVSD with syllabic filter: 16 and 32 kHz clock frequency
Channel simulator: adjustable attenuation and bandwidth (5/10/20/40/100 kHz)
Noise generator: adjustable amplitude
1 kHz synchronous generator with clocks for easier wave form examination Microphone and loudspeaker: included Fault simulation: Possibility to insert 10 faults
Test and interconnection points,Ø2 mm
Rapid modifications to circuits using jumpers

Power Supply Unit

Output 1: +1.3Vdc ÷ +24Vdc, 1A
Regulated voltage electronically protected against short circuits and overloads
Lateral knob for selecting the variable voltage
Output 2: 24Vac-0-24Vac, 0.5A
Protected with fuse
Output 3: +5Vdc-2A, Output 4: +12Vdc-2A
Regulated voltage electronically protected against short circuits and overloads
Output 5: 12Vdc-1A
Regulated voltage electronically protected against short circuits and overloads
Power supply 220 to 230VAC 50Hz 1 Phase