Quantity
of channels |
30 |
Code is
PCM (Pulse Code Modulation) |
With use A-law, 64 kbps to each channel
under ITU-I recommendation G.711. |
Line code |
AMI (HDB3) |
TC-PAM16 |
Length
of regeneration section, km |
|
For copper
twisted pair of cable S = 0,4 mm2 |
- |
up to 4 |
For copper
twisted pair of cable S = 0,5 / 0,7 mm2 |
- |
5/6 |
For copper
twisted pair of cable S = 0,9 / 1,2 mm2 |
3/5 |
7/10 |
Air-loop
connection |
- |
15 |
Maximum
quantity of regeneration sections |
10 |
5 |
Power
of a signal in line connection |
- |
up to 4,5 dB |
Characteristics
of interface |
|
Interface |
2 copper twisted pairs of cable with attenuation no more
than 43 dB at frequency 1024 kHz |
1 copper twisted pair of cable with attenuation no more
than 43 dB at frequency 350 kHz |
Type of
transmission |
simplex |
full duplex |
Rate of
transmission |
2048 kbps |
Central
interface office |
|
Impedance |
600 Om |
FXO/FXS |
Reception/transmission (0 dB /-7 dB); 1 CAS(Channel
Associated Signaling), 2 CAS or SL (Subscriber Loop) |
E&M |
Reception/transmission (-3,5 dB /-3,5 dB and +4,3/-13
dB); 1 CAS, 2 CAS, 2600 Hz |
Quantity
of subscriber’s channels |
from 1 up to 30 |
Type of
interface |
FXO/FXS SL |
Resistance
of a subscriber loop |
Up to 1 kOm |
Power
supply of system |
|
Battery
voltage in central office |
from 36 V up to 72 V |
Power
consumption |
no more than 30 W to each system |
Protection
against battery pole change |
Yes |
Sound
and light signal system, losses of synchronization |
Yes |
Range
of working temperatures |
from +5 up to +40 ¾Á |
Dimensions
(W x D x H), weight: |
|
Central
equipment |
19 " x 23 mm x 140 mm, weight no more 8 kg |
Terminal
equipment |
19 " x 23 mm x 140 mm, weight no more 8 kg |
