|
|
overview:
Transmit N*64k E1 signal ,realize long distance data and voice signals transmission via fiber, In addition to providing the ITU-T/G.703 recommended requirements of 2Mbit / s channel, the device also offers users a one-way asynchronous data channel and channel. Single E1 PDH can be used as a local network of relay transmission equipment, especially for the end of the fiber as the base stations of mobile communication network transmission equipment and rental of equipment. The device is small in size, light weight, compact appearance, convenient installation and maintenance; transmission quality, reliable operation.
|
|
|
|
main features:
|
|
|
| (1) Having two rows of LED, upper row indicate local status, lower row indicate remote status and alarm status. |
| (2) Based on self –copyright IC, high software content (kernel chip based on software) |
| (3) Realize take out specified time-slots to compose N*64k(N=1—32) data channel. |
| (4) Provide 3 loop functions: local loop(ANA), to remote loop(DIG), order remote loop(REM). |
| (5) Have pseudo random code test function, easy to install and maintain. |
| (6) Realize rate setting of remote equipment (in slave clock status) when local equipment is in master clock status. |
| (7)E1 fiber modem can be used with V.35 fiber modem by pair, saved 1 G.703/V.35 converter. |
| (8) Power supply option: AC220V, DC-48V. The positive and negative terminal can be exchanged for DC-48V, easy to install and maintain. |
| (9)Network management interface used SNMP. |
| (10)Two types:Standalone, desktop, 19inch;Card,usually be inserted in our 19 inch rack . |
|
|
Technical specifications:
|
|
|
1. E1 interface
Interface Rate: N*64k
Code: HDB3
E1 Impedance : BNC 75Ω(unbalance) and RJ45 120Ω(balance).
Interface character: match G.703
Jitter tolerance : according with G.742 and G.823.
2. Fiber interface
Interface: FC/SC
Wavelenth: 850nm/1310nm multi-mode, 1310nm/1550nm single mode.
Transmit distance: 2 Km multi-mode, 40 Km/60Km/120Km single mode.
|
|
|
 Back  Print  Collect  Contact Us |
|
|
