Performance attributes
| Interface Å1 (G.703) |
| Quantity |
4, 8 or 16 |
| 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 |
RJ-45 |
| Speed |
up to 115 200 bit/s |
| |
|
| Optical interface |
| Quantity |
1 |
| 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 |
| |
|
| Service traffic |
| Headset mini-jack connector |
| |
|
| Control and signalling |
| Interface RS232 |
Software is a standard ANSI - terminal |
Interface Ethernet
10/100 BaseT |
Protocols SNMP, Telnet |
| Rack-mount signalling |
"dry contact" |
| |
|
| Power supply |
| Voltage |
DC 36 - 72 V
AC 220 V adapter can be connected in |
| Power |
up to 6 W |
| |
|
| Dimension and weigh |
| Execution |
Rack mount option (slot in 19'', 1.5U rack) |
| Height x Width x Depth |
40 x 225 x 165 |
| Weigh |
700 g |
| |
|
| Environment |
| Temperature |
from 5 to 40°Ñ |
| Relative humidity |
from 5 to 80% |
| Atmosphere pressure |
not below 60 kPa | | | |
Fiber optical modem PolyKom-300U intends for concurrent transmission:
- 4, 8 or 16 E1-streams;
- Ethernet 10/100 Base-T, 100 Mbit/s;
- asynchronous data (1xRS232-port with data rate up to 115,2 Kbit/s);
|
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.
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 saves date, time and character of events in nonvolatile;
- loading new software support by PC;
- indication of state of the device by means of LED, and indication of alarm by beep;
- checking feature of local and remote equipments;
- low power consumption (lower than 6 W);
- guaranteed for 5 years.
Control of device is realized by means of:
- F-port (RS-232) with ANSI;
- Q-port (Ethernet 10/100 Base-T), SNMP-protocol v.1.0 with any SNMP-manager, Telnet.
Fiber optical modem PolyKom-300U 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 are 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:
