[PoliKom]®-740, equipment of the redundancy

Producer: Joint stock company of Research and Production Enterprise the range

Equipment Of [poliKom]®-740 works before the regime redundancy 1+1:

On the transmitting entry side flow is executed in parallel down two identical equivalent signals. On the receiving side two entering signals are compared past the quality. The criteria of switching are LOS, AIS, ES (SES). Signal with the best quality automatically is commutated down the outgoing joint E1. The basic circuit, assigned operator, is selected with the equal qualities of signals. Switching circuits is produced before the time interval not more than two clock intervals of flow E1 (G.703), i.e., without the loss of connection.

Full connection diagram with the redundancy

The special features of this equipment are:

• switching circuits before the time interval is not more than two clock intervals of the signal Of [e]1, i.e., without the loss of connection;
• the renovation of built-in software based on usual PK;
• organization from 1 to 4 independent switches before one [konstruktive];
• control on SNMP or according to joint RS-232 (possibly through LAN or Internet);
• the periodical of events before the energy-independent memory, which stores date, time and the nature of event;
• mapping the current state by single indicators, notification about the emergency by sound signal and by means of the stand signaling (“dry contacts”);
• control capability besides the local and remote equipment.

Control besides equipment is accomplished on one of two joints:

• joint F (RS-232) with the use of any standard ANSI - terminal;
• joint Q (Ethernet 10/100 Base- T) on the protocol SNMP of v.1.0, with the use of any SNMP of manager.

[PoliKom]®-740 allows wide control capabilities with the aid of PK:

• monitoring the local and remote equipment before the regime of real time;
• the reconfiguration of the local and remote equipment (including the installation of trains);
• the survey of the periodical of the occurred events on the local and remote equipment.

The interfaces of equipment correspond to the standards [MSE]- T Of g.703, G.775.

Technical characteristics:

Interface Of [e]1 (G.703)
Quantity	4,8 or 12
Joint	RJ-45
Speed of transmission	2 048 x (1±50 x 10-6) Of [kbit]/c
Code before the line	HDB-3 or AMI
Joint chain	symmetrical 120 Ohm
Damping	to 12 dB
Control and the signaling
Interface RS232	PO- standard ANSI- terminal
Interface Of ethernet of 10/100 BaseT	Protocol SNMP
C[toechnaya] signaling	“dry contacts”
Electric power supply
Stress	DC 36-72 [V]. [Est]s is possibilities of the connection of the external adapter of nourishment for AC 220 before
Required power	to 5 W
The design concept and the weight
Performance	Table or stand (19 ", 1U)
Before x Sh x G	44 x of 485 x 100
Weight	4 kgf
The environment
The operating temperature	from 5 to 40°[S]
Relative humidity	from 5 to 80%
Atmospheric pressure	not below 60 kPa

Code of the order: