| ROLI
& RILO Interfaces |
Port |
UK complex impedance
2 wire |
|
|
maximum input and
output level 775mV |
|
|
loss to 2280Hz interface
4dB @ 1015Hz |
|
Signalling |
DTMF or 10pps loop
disconnect dialling |
|
|
TBR (time break recall)
and battery disconnect clear supported |
|
ROLI |
battery feed 21mA/35V,
off-hook detect threshold 8mA |
|
|
ring current nominal
60V RMS, 25Hz |
|
|
connects to loop-calling
trunk port or simple telephone |
|
RILO |
ring detector sensitivity
25V RMS 17-25Hz |
|
|
attaches to CRA extension
telephone port |
| E &
M Working |
Audio |
600 ohm, 2 or 4 wire
selected by multicoder |
|
|
maximum level to line
0dBm |
|
|
4-wire 4dB nominal
loss to ROLI & RILO ports @ 1015Hz |
|
|
2-wire 0dB nominal
loss to ROLI & RILO ports @ 1015Hz |
|
Signalling |
DC5A, DC5C and manual
E & M operation link selected |
|
|
idle - open circuit
signal - earth, signal conditions can be inverted and NSF linked
in or out
E & M leads can be configured for USA types I and II |
| 2280Hz
Working |
Line Circuit |
600 ohm 4-wire (circuit
normally provides 4dB end to end gain) |
|
|
provision to increase
converter TX and RX gain by 4dB |
|
|
audio output level
-4dB |
|
|
audio input level
0dB |
|
Signalling
|
AC15A, AC15C and manual
2280Hz operation link selected |
|
|
output tone frequency
2280 +/- 1Hz |
|
|
output tone level
-24/-14 dBm +/- 1dB |
|
|
detector operate level
-3 to -29dBm |
| Physical |
ASC500SAD |
Power |
-43 to -57V dc @ 140
mA maximum |
|
ASC500SA |
Power |
240V 50Hz with supplied
external plugtop power supply PU246 |
|
|
Size |
main unit H x W x
D -190 x 137 x 47mm |
|
|
Weight |
0.4 kg |
|
|
Connectors |
user wiring -IDC connector
Type 239A |
|
ASC500RM |
Power |
-43 to -57v dc @ 140
mA maximum |
|
|
Size |
H x W x D -100 x 35.5
x 220mm |
|
|
Weight |
0.26kg |
|
|
Connector |
DIN41612 male fitted
row a |
|
|
Housing |
EA11024B 3U 19 inch
12-slot mounting shelf or equivalent |
| Approval |
ASC500SA |
BABT |
NS/4271/2/T/606074
|
|
ASC500RM |
BABT |
NS/4271/2/T/606075 |
