The certificates of Ministry of the Russian Federation for Communications and Informatization


Digital trunks signaling converters

Signaling converters provide the interoffice interaction, using the different interaction protocols while establishing of connections of all types.

The possibility of remote access for the converters control (the changes in configuration, functioning control, etc.) is provided - locally (by the RS-232 interface), by the modem (built-in, external), or by the Ethernet network (TCP/IP).

Converters' power supply can be carried out from the constant-current source 48/60 V, or from the alternating current source 220V.

There are two variants of the converters constructive fulfillment.
• for setting in 19'' frame
• in micro-PC case.

Download catalogue (296 K)


ISM model

Fulfils the transformation from SS No.7 signaling protocol into DSS1/QSIG signaling protocol.

The use of the converter allows to organize the interaction between the exchanges, using SS No.7 signaling protocol, and the systems utilizing primary access lines with DSS1 protocol, ETSI version for the connection with the supporting exchanges (PABX with ISDN functions, ISDN concentrators and multiplexers).

The possibility of called subscriber's number format transformation for the DSS1 -> SS No.7 calls is provided.

ISDN additional services are supported: DDI, CLIP, CLIR, COLP, COLR, USS-type 1.

CSM model

Fulfils the transformation DSS1/QSIG protocol into 2CAS signaling.

Converter may be used for the organization of interaction between the exchanges with 2CAS signaling (decade dialing, "MFC shuttle", "MFC packet", ANI) and the systems, utilizing primary access lines with DSS1 protocol, ETSI version for the connection with the supporting exchanges (PABX with ISDN functions, ISDN concentrators and multiplexers) or with QSIG protocol. The automatic incoming connection to the subscribers of small PABX with ISDN functions from the outside of electromechanical offices is provided.

Converter is also may be used for the connection of access Internet servers to the exchanges, supporting 2CAS signaling.

The possibility of ANI individual information transmission, ANI request at incoming connection from the outside of 2CAS signaling, DDI, CLIP additional services granting, called and calling subscribers' numbers transforming is provided.

USM model
Fulfils the transformation SS No.7 signaling protocol into 2CAS signaling. The use of the converter allows two exchanges to interact between each other, in case when one of them supports SS No.7 signaling protocol (MTP, ISUP) and the other - 2CAS signaling protocol signaling ("MFC shuttle", "MFC packet", ANI).
The possibility of called and calling subscribers' numbers transforming, ANI individual information transmission, ANI request at incoming connection from the outside of 2CAS signaling, DDI, CLIP additional services granting is provided.

RSM model
Fulfils the transformation SS No.7 or DSS1 signaling protocol into 1CAS signaling ("norka", inductive code).
Converter use allows to connect the equipment of rural and departmental networks with anew established equipment (for example, at the upgrading of rural communication node or at departmental network expansion).
The possibility of ANI request, CLIP additional service granting is provided.

VSM model
Fulfils the transformation V5 signaling protocol into DSS1 signaling protocol (PRI, ETSI version).
Converter use allows connecting the access network equipment (concentrators, WLL systems) with V5.2 or V5.1 interface to the supported exchange (PABX) with DSS1-PRI signaling system.
VSM converter use will provide the concentration of subscriber calling rate. This will allowed to use the subscriber capacity of communication system more efficiently.

XSM model
Fulfils the transformation of early or nonstandard SORM protocol versions into the version, which corresponds to the requirements of data transmission channels. Converter adaptation to each specific case is possible depending on realization method of SORM at the exchange.
Converter has the opportunity to represent the connection state information as from the LE just as from control console.
There are two converters' modifications: for fixed networks and for SPRS networks.

KPS R2xR1.5 model
Fulfils the transformation R2 DTMF or R2 MFS signaling protocol into R1.5 (the digital trunk with 2CAS line signaling and 2 from 6 register signaling by "MFC shuttle" method).
Converter provides the exchange interaction at establishing of the connections: local outgoing trunk, local incoming trunk, long-distance outgoing to toll exchange by order trunk, long-distance incoming from toll exchange by toll trunk.

Analog trunks signaling converters
KPS3x2 model
Provides the connection of small capacity private-branch office to 3-wire analog trunk of the urban network with the help of 2-wire subscriber lines or 2-wire lines with DID protocol, supporting in that way the possibility of automatic incoming connection from urban network to private-branch office subscribers.
Converter receives the called subscriber's number information from 3-wire analog trunk with decade dialing , provides the support of standard 3-wire trunk signaling protocol, occupies 2-wire private-branch office line and transfer the number in DTMF code.
Amount of digits, received from the urban network and transferred to private-branch office, is stipulated in each specific case.

KPS3xE&M(I,V) model
Provides the interaction between automatic telephone exchange with 3-wire analog trunks and private-branch offices with E&M(V) interface, rural exchanges and private-branch offices with E&M("inductive code") interface.
E&M interface has 2-wire conversational trunk.
All analog trunk signaling converters are made in micro-PC constructive.

Geography of the users
Signaling converters are successfully used nowadays in such cities as St-Petersburg, Moscow, Bishkek, Vyborg, Izhevsk, ignalina, Kiev, Mtsensk, Ramenskoye, Naryan-Mar, Nazran, Omsk, Rostov-on-Don, Smolensk, Dushabe, Vladivostok and others.





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