联网
| 支持ISDN连接 |
Y |
| 调制解调器速度 |
175 Kbit/s |
安全
| 防火墙 |
DoS, DDos, TCP, SYN |
| 支持虚拟专用网 |
Y |
| 网络地址转换功能 |
Y |
| MAC（媒体存储控制）地址过滤 |
N |
性能
| 散热 |
1195 BTU/h |
| 内置存储器 |
512 MB |
| 闪存 |
1024 MB |
其他功能
| 内部记忆体扩充槽数量 |
4 DIMM |
| 最大数据传输率 |
0.75 Gbit/s |
| 冗余电源系统（RPS）选项 |
N |
| 接受频率 |
63 Hz |
| 输入电压 |
100 - 240 V |
端口 & 界面
| 广域网接口 |
Mobile network (USB) |
| USB 端口数量 |
2 |
环境条件
| 非操作相对湿度(非冷凝) |
10 - 90% |
| 运行温度范围（T - T） |
32 - 122 °F |
能量控制
| 支持以太网（PoE） |
N |
| 电源 |
300 W |
| 输入电流 |
3.5 A |
管理功能
| 支持服务质量（QoS） |
Y |
| 重启按钮 |
Y |
| 网上管理 |
N |
协议
| 动态主机配置协议客户 |
Y |
| 动态主机配置协议服务器 |
Y |
| 支持网络协议 |
POP3, HTTP, SMTP, IMAP, FTP |
以太网LAN特性
| 以太网的数据传输率 |
10, 100, 1000 Mbit/s |
J Series Services Router, 256 MB DRAM
Enterprises are faced with a number of challenges and opportunities by converging voice, video and data to one network. This consolidation of network elements reduces cost by easing deployment of SIP enabled VoIP, real-time high-definition Telepresence and standardizing on a consistent infrastructure network operating system like Juniper Networks Junos operating system. These new technologies improve; customer relations, interactions with suppliers, and employee productivity. This mission-critical multi-media network must be always on and always available. To accomplish this, fully integrated stateful security is a key requirement, not merely forwarding packets without regard to the intended application or individual user session. Junos OS provides the high-performance networking infrastructure that helps enterprises implement key initiatives that:
- Integrates routing, firewalling and VPN into one best in class secure router. By securing an enterprise’s mission critical information and protecting the network from vulnerabilities and attack, the Juniper Networks J Series Services Router offers a combination of features that increases productivity and reduces costs. With Junos OS release 9.6, the J Series enhances these features with Unified Threat Management, consisting of antivirus, antispam, Web filtering and intrusion prevention system. These advanced security features can eliminate a standalone appliance and be applied with a software key.
- Minimizes the cost of installing and operating a network by deploying J Series. With the modular, protected mode design of Junos OS and the rigorous Junos OS development and testing process, there are fewer system process failures. The single code source of Junos OS makes the qualification of new releases across the network much simpler. In addition, superior configuration management reduces human errors that could lead to network downtime.
Whether you have an enterprise network or a service provider looking for customer premise equipment for an MPLS or IP network, the J Series offers a mix of features that excel at both. By leveraging Junos OS, the J Series can be deployed at medium to large sites and the wide range of interfaces scales the bandwidth as necessary for today’s real time communications
- Support for T1, E1, Synchronous Serial, ISDN BRI, ADSL/2/2+, G.SHDSL, and Gigabit Ethernet interfaces
- Support for integrated IP telephony using the Avaya IG550 Integrated Gateway
- Support for application acceleration using the Juniper Networks ISM200 Integrated Services Module
- 4 fixed Gigabit Ethernet LAN ports, and 5 PIM slots
- 512 MB DRAM default, expandable to 1 GB DRAM
- 512 MB compact flash default, upgradeable to 1 GB
- Hardware encryption acceleration (optional)
- DC version available
- NEBS-compliant models available
- Full UTM; antivirus, antispam, Web filtering, intrusion prevention system (with high memory version)
- Unified Access Control (UAC) and content filtering
