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The ICA SR supports distances up to 150 meters (492 feet) and a link data rate of 8 GBps. OM3 fiber optic cable is used for distances up to 100 meters (328 feet), and OM4 or OM5 for distances up to 150 meters (492 feet). ICA SR supports four CHPIDs per port and seven subchannels (devices) per CHPID. ICA SR supports transmission of Server Time Protocol (STP) messages. 

GLYPH<SM590000> Coupling Express Long Reach: Coupling Express LR (FC 0433) is needed for Long Distance Coupling z14 ZR1/z14 M0x/z13/z13s to z13 and above. It supports a maximum unrepeated distance to 10 kilometers (6.2 miles) and up to 100 kilometers (62 miles) with a qualified DWDM. CE LR coupling links are defined as CHPID CL5. CE LR uses same 9 µm single mode fiber cable as 1x IFB. 

The coupling link options are listed in Table 4-8. 

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The maximum number of combined external coupling links (active CE LR, ICA SR links) is 44 per z14 ZR1 server. z14 ZR1 servers support up to 176 coupling CHPIDs per CPC. A z14 ZR1 coupling link support summary is shown in Figure 4-4. 

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