Performance attributes Interface Е1 (G.703) Quantity 1, 2 or 4 Connector RJ-45 Bit rate 2 048 x (1±50 x 10-6) Kbit/s Line code HDB-3 or AMI Impedance symmetrical 120 Ohm Attenuation up to 12 dB Interface Ethernet 10/100 BaseT Quantity 1 Connector RJ-45 Capacity 100 Mbit/s Upper limit frame size 1916 byte Compatibility IEEE 802.3 IEEE 802.1q       Interface RS232    Connector mini-USB Speed up to 115 200 bit/s    Optical interface Connector SC Bit rate 152 Mbit/s Port number 2 or 1 (WDM) Distance up to 120 km Line code NRZ Type oscillator LASER Wave length 1310 nm 1550 nm Level of optical power during the information transmission no more than minus 3 dBm Overlapped attenuation up to 27 dB Control Interface RS232 Standard ANSI-terminal Possibility of local and remote equipments control Power supply Voltage DC 18 - 72 V AC 220 V adapter can be connected in Power up to 3 W Dimension and weigh Execution Rack mount option (slot in 19'', 1U rack) Height x Width x Depth 35 x 140 x 120 Weigh 200 g Environment Temperature from 5 to 40°С Relative humidity from 5 to 80% Atmosphere pressure not below 60 kPa

Fiber optical modem PolyKom-200U intends for concurrent transmission:

1, 2 or 4 E1-streams; Ethernet 10/100 Base-T, 100 Mbit/s; asynchronous data (1xRS232-port with data rate up to 115,2 kbps);

over single-mode and multimode fiber.
Data rate up of optic link to 152 Mbps.

This PDH-decision is effective in creation of distributed networks consist of separate segments with small capacity and also in organization branches ("last mile") from SDH dataway.

For much more comfort in operation, version of fiber optical modem exist in equipment for mounting in Create 3U-15-1 of 19-inch, 3U – PolyKom-200UK. It is possible to mount to 14 modems in single Create, and control by SNMP-manager.

Special rack means for mounting device into 19''.

The main features of equipment are:

• low cost;
• low mass-and-dimension of array;
• VLAN supporting (frame size 1916 byte);
• session log saving date, time and character of events in nonvolatile;
• RS232-management by means of ANSI;
• loading new software support by PC;
• indication states of device by means of LED, and indication of alarm by beep;
• checking feature of local and remote equipments;
• low power consumption (lower than 3 W);
• guaranteed for 5 years.

Control of device is realized by means of F-port (RS-232) with ANSI.

Fiber optical modem PolyKom-200U can be managed by means of PC:

• monitoring of local and remote equipments in real time;
• redesign of local and remote equipments (including loopbacks);
• revision of log in local and remote equipments.

All interfaces of device compliance with ITU-T G.823, G.747, G.704, G.703, G.651, G.652, G.654 Recommendations.

Available variants of optical interface:

• 1310 nm for 1 fiber mode;
• 1550 nm for 1 fiber mode;
• two-forked transiver 1310/1550 nm for 1 fiber mode routine of work.

Order code: