激活单元和备份单元在运行状态时都接收egd交换信息，不过两两个单元是否处于同步状态。推荐所有的交换都传送到两两个单元中。特殊的，这些交换数据可以被设置成多点传输或者直接传送到冗余IP地址上。两两个单元接收多点传送的交换信息的方式是各自独立的。
2MB PCMCIA SATA Flash Memory Centennial Linear PC Card
Hurst P/N:992110 GA Series 3RPM 115V 10W 60Hz 200Torque
Olympus MAJ-1088 Lamp N1015100 IPLEX Basic/SA/SX Replac
HP 5185-4807 12x8x32x Internal IDE CD-RW Plus Drive
Telebyte Model 366M RS232 to RS485 Interface Converter
4 MB PCMCIA SATA Flash Memory Mecamira PC Card
Optrex DMF-50840 5.7-inch Mono LCD Display Screen Panel
Telebyte Model 366M RS232 to RS485 Interface Converter
InterlinkBT JBBS-57-E401 Bus Stop Passive Multiport Jun
Lexmark IBM Keyboard PS/2 PS2 71G4644 FRU 71G4646 Termi
Teac 1.2MB Internal Floppy Drive 5.25″ 5 1/4 FD-55GFR
Compaq 35/70 GB DLT Internal Tape Drive SCSI TH6AE-HK 2
Cisco WS-X4232-GB-RJ 10/100 Base-TX 1000 Base-X Switch
Black Box SW932A-R2 Keyboard Monitor Switch 4-Port NIB
Festo ZYZ-63-150 Hydraulic & Pneumatic Feeding Unit ZYZ
National Instruments 181638-01B GPIB Adapter Connector
Teac 1.2MB Internal Floppy Drive 5.25″ 5 1/4 Vintage
