IBM 2109 Service Guide - Page 19

Switch connector end SC connector end SJ000041 Figure 2. Short wavelength (SWL) laser fiber-optic GBIC module (P/N and labeling vary) Note: The SWL GBIC module uses a class 1 laser, which complies with the 21 CFR, subpart (J) as of the date of manufacture. LWL fiber-optic GBIC module The LWL fiber-optic GBIC module, with the SC connector color-coded blue, is based on long wavelength 1300-nm lasers supporting 1.0625-GBps link speeds. This GBIC module supports 9-µm single-mode fiber-optic cables up to 10 km (32 808 ft) in length with a maximum of five splices. Figure 3 shows an LWL GBIC module. Switch connector end SC connector end SJ000042 Figure 3. Long wavelength (LWL) laser fiber-optic GBIC module (P/N and labeling vary) Power supply The 2109 Model S16 Switch has one or two power supplies. See Figure 4 on page 4. Only one power supply must be operational for normal switch function. If two power supplies are present, they operate as load-sharing power supplies. If the optional second power supply is ordered, it is installed during the installation procedure. The switch is shipped with one power supply installed and has the following requirements: v Properly wired, earth-grounded outlet v Input voltage: 85 - 265 V ac v Total power: Up to 110 watts (depending on configuration) Chapter 1. Introduction 3