NetScreen-25/50 Overview
NetScreen-25/50 Overview
Problem:
This article applies to ScreenOS 4.0 and higher.
| Port | Use | Connection Detail |
| Asset Recovery Pinhole | Allows you to reset the device to the original factory default settings. | |
| Console | Enables a serial connection to establish terminal sessions with the system. Used for launching Command Line Interface (CLI) sessions. | The connector type is DB-9, line speed is 9600 bps, and the protocol used is RS-232. |
| Modem | Allows for establishing remote console sessions using dialup connections. Dialing into the modem port establishes the dialup console connection. | The connector type is RJ-45 serial, line speed is 9600 bps - 155 Kbps, and the protocol used is RS-232. |
| Compact Flash Slot | Used for storage of system images, configuration files, keys, and logs. The NetScreen device automatically detects the presence of a flash card and records the event log to it. | SanDisk CompactFlash (TM) cards with a variety of memory capacities. NetScreen has tested 96 MB and 512 MB cards. |
| Ethernet Ports 1-4 | Enables a direct connection to your workstation, a LAN connection through a switch or hub, or an Internet connection through an external router, DSL modem, or cable modem. This connection also allows you to manage the device through a Telnet session or the WebUI management application | The connector type is RJ-45, line speed is 10/100 Mbps auto-sensing, and the protocol used is Ethernet. |
The front panel of your NetScreen-25/50 also has power and status LEDs for the device, as well as activity and link status LEDs for the Ethernet interfaces. These LEDs include the following status possibilities:
| LED | Disposition and Description |
| Power | Green and solid on indicate the system is receiving power. |
| Off indicates the system is not receiving power. | |
| Alarm | Amber indicates a major alarm; low memory (less than 10% remaining); high CPU utilization (greater than 90%); log memory full; sessions full; maximum number of VPN tunnels reached; firewall attacks detected. |
| Red indicates a critical alarm, such as, a hardware component failure or software module failure. | |
| Status-1 | Green and solid on indicate the system is booting up normally. |
| Green and blinking indicate the system is functioning. | |
| Off indicates no alarms. | |
| Status-2 | Reserved for future use. |
| Session | Orange and solid on indicate session utilization is between 70% and 90%. |
| Red and solid on indicate session utilization is greater than 90%. | |
| Off indicates normal session operation. | |
| Flash | Green and solid on indicate CompactFlash (TM) card is installed in Compact Flash slot. |
| Green and blinking indicate the CompactFlash (TM) card is active. | |
| Red indicates the CompactFlash (TM) card is greater than 90% full or read/write activity has failed. | |
| Off indicates the CompactFlash (TM) slot is empty. | |
| Activity | Green and blinking indicate that the port has detected traffic. |
| Link | Green and solid on indicate the port has established a link with another device. |
| Off indicates the port has not established a link with another device. |
The rear panel of your NetScreen device contains the power outlet and on/off switch.
You can order your NetScreen device with either an AC or DC power supply.
NetScreen recommends using a surge protector for the power connection. Installation
