OSN 500 STM-1 STM-4 Fiber Transmitter 21E1 SDH
Short Description:
| Item | Description |
| Appearance | |
| Board | System control, switching, and timing boards: CSHD |
| Packet functions and features | Service features |
| Switching capacity | 7.2 Gbit/s |
| Equipment-level protection | 1+1 protection for input power |
| Intelligent fan speed adjustment | Supports automatic adjustment s of fan speeds based on the highest temperature of boards in the chassis. |
| Management ports and auxiliary ports | |
| Port Type | |
| Description | Connector |
| External clock port | |
| 120-ohm external clock port, which can work in 2048 kbit/s or 2048 kHz mode | RJ45 |
| External time port/Port for monitoring an outdoor cabinet | |
| External time port: The equipment provides two external time input/output ports. | RJ45 |
| Power supply port | |
| Two -48/-60 V DC power ports | 4-pin terminal block |
| NMS management port | |
| NMS port/NMS serial port, which connects to an NMS | RJ45 |
| Alarm input/output port | |
| 3-input/1-output alarm port | RJ45 |
xxxxxxx.
