Whiteley Electronics PETS-2 - 6 Technical Data; Mechanical Details; Electrical; Telephony

PETS-2 Crossing Telephone System
QUICKFIX INSTALLATION HANDBOOK
Page 35 of 40
Issue 2
13/12/99
35
6. TECHNICAL DATA
6.1 Mechanical details
DIMENSIONS (Level Crossing model) :
width (including connectors) - 252 mm
width (case only) - 324 mm
height (case only) - 160 mm
depth (including wall stand-off) - 210 mm
Note: Signalbox unit is slightly smaller due to different front panel arrangement)
WEIGHT : 5.3 Kg.
COLOUR : RAL7032
6.2 Electrical
POWER SUPPLY: 20V dc to 58V dc, in two ranges
CURRENT: 0.425A @ 24V dc / 0.25A @ 50V dc
AUXILIARY 12V SUPPLY: maximum load current 0.1A - fused @ 0.1A
OPTO INPUTS: operating range 12V dc to 58V dc
RELAY OUTPUT RATING: 100V dc @ 0.3A, 30V dc @ 1A
6.3 Telephony
6.3.1 Telephone Circuits
REN RATING: maximum of REN = 2 per line
MAX. LOOP RESISTANCE: 1000R
MATCHING Z: 600R
LOOP LEAKAGE (QUIESCENT): 6mA nominal {>2mA, <8mA}
LOOP TRIP: >15mA
6.3.2 Transmission
MATCHING Z: 600R