Publications of the journal Special Equipment. The article was updated on 20.04 in 2023.
Publications of the journal Special Equipment.
Product type
Purpose
Protection method
Operational control of proper operation
Need for routine maintenance
Maintaining operability with active methods of influence
Detection during operation of replacement or damage to the SZ
All failures that reduce efficient operation are detected during operation.
Power supply
Backup power supply operating time (h)
Current consumption, mA
Note
primary
backup
“Korund”
Protection of 2-wire analog TA
PSZ
no
yes
no
no
no
no
not required
—
Certificate available
“Granite-8M”
PSZ
no
yes
not fully
no
no
not required
“Bouquet”
—
PSZ
no
yes
-«-
no
no
and
—
-«-
“Gran-300”
2-wire analogue protection TA
PSZ
no
yes
not fully
from subscriber lines
0.1
“MP-1 A”
2-wire protection analog TT powered from ATS
PSZ + ASZ
during dialing
no
yes
yes
yes, in terms of ASZ, not fully in terms of PSZ
from subscriber line
<0.4
“MP-1 C”
Protection of 2-wire digital telephone with power supply from PBX
PSZ+ ASZ
by connecting headphones to the subscriber line
no
yes
no
-«-
«»
<0,4
—
“MP-2”
Protection of 3-program receivers
PSZ+ ASZ
optical
no
yes
yes
yes
food 3-program. receiver
<9
Under design certificate
“MP-3”
TSPI protection over the network 220V power supply
PSZ
not required
no
Yes
no
no
-220V
“MP-4”
Secondary clock protection
ASZ
optical
no
yes
yes
TO
“Crown”
< 0.06
-«-
“MP-5”
Loudspeaker protection of the public address system
PSZ
alert signal
yes
yes
yes
TO
“Krona”
< 6
“MP-6”
Universal protection device of 2-wire analog and digital TA with backup power supply
PSZ+ ASZ
optical monitoring of MP and battery discharge
no
yes
yes
yes, in terms of ASZ, not fully in terms of PSZ
from subscriber line
“Krona”
>1260
<0,5
“MP-7”
Device with backup power for protection of 2-wire digital telephones with loudspeaker communication
PSZ + ASZ
no
yes
yes
from subscriber line
“Krona”
> 900
<7
Under development
Passive IR sensors for security alarms
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