S7700 Series S7703/S7706/S7712 02310LLE DWDM-SFPGE-1560-61 DWDM optical module eSFP-2. 61nm,120km,LC) The S7700 series switches (S7700 for short) are high-end smart routing switches designed for next-generation enterprise networks. The S7706 chassis is 10 U high (1 U = 44. Figure 4-32. NOTICE ● ES02VSTSA card is not hot swappable. ● When installing a copper cable, optical module, or optical fiber, you can determine that it has been installed properly after hearing a click. Figure 2 shows the. ES0Z1B06ACS0 is the Huawei S7706 Basic Engine AC Bundle (Including non-PoE Assembly Chassis, SRUA Main Board*2, 800W AC Power*2).