ALSTOM NRD108033 8RDC44667G01 SA44667.C PLC系统备件
1.产 品 资 料 介 绍：
中文资料：
如果您的ALSTOM NRD108033 8RDC44667G01 SA44667.C配备了SRAM备用电池，当主板电源出现故障时，DS1210S会选择电压最高的电源。如果一个源发生故障，DS1210S将切换到冗余源。
每次板通电时，DS1210S都会检查电源，使软件能够提供早期警告以避免数据丢失：❏ 如果备份源的电压小于2伏，则第二存储器访问周期被阻止。❏ 因为DS1210S可能会阻止第二次访问，所以软件在依赖数据之前应该至少进行两次访问。
通过可选的备用电池，ALSTOM NRD108033 8RDC44667G01 SA44667.C提供跳线（请参阅第3-11页的可选SRAM备用电源选择标题J6），允许DS1210S的电源连接到VMEbus+5V STDBY引脚或板载电池的一个电池。
电池的电源线暴露在电路板的焊接侧，因此，除非电池已取出，否则电路板不应放置在导电表面或存放在导电袋中。ALSTOM NRD108033 8RDC44667G01 SA44667.C
英文资料：
If your ALSTOM NRD108033 8RDC44667G01 SA44667.C is equipped with SRAM battery backup, when the main board power fails, the DS1210S selects the source with the highest voltage. If one source should fail, the DS1210S switches to the redundant source.
Each time the board is powered, the DS1210S checks power sources, allowing software to provide an early warning to avoid data loss: ❏ If the voltage of the backup sources is less than two volts, the second memory access cycle is blocked. ❏ Because the DS1210S may block the second access, the software should do at least two accesses before relying on the data.
With the optional battery backup, the ALSTOM NRD108033 8RDC44667G01 SA44667.C provides jumpers (see Optional SRAM Backup Power Source Select Header J6 on page 3-11) that allow either power source of the DS1210S to be connected to the VMEbus +5 V STDBY pin or to one cell of the onboard battery.
The power leads from the battery are exposed on the solder side of the board, therefore the board should not be placed on a conductive surface or stored in a conductive bag unless the battery is removed.
2.产 品 展 示
3.主 营 品 牌
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