Important: z14 ZR1 servers do not support the ISC-3, HCA2-O (12x), HCA3-O (12x),  HCA2-O LR (1x), or HCA3-O (1x) features and cannot participate in a Mixed Coordinated  Timing Network (CTN). z196, z114, and older CPCs  cannot  coexist in the same Parallel  Sysplex or STP CTN with z14 ZR1 (no coupling connectivity). zEC12 or zBC12 can coexist  in the same Parallel Sysplex with z14 ZR1 only if the CPC hosting the CFs includes  coupling connectivity to the zEC12/zBC12 and z14 ZR1 CPCs (the CF LPAR cannot be on  zEC12/BC12 or the z14 ZR1 CPCs). A physical channel ID (PCHID) reflects the physical location of a channel-type interface. A  PCHID number is based on the following factors: 4.5.2 Physical channel ID report GLYPH<SM590000> PCIe+ I/O drawer location GLYPH<SM590000> Channel feature slot number GLYPH<SM590000> Port number of the channel feature A CHPID does not directly correspond to a hardware channel port. Instead, it is assigned to a  PCHID in the hardware configuration definition (HCD) or IOCP. A PCHID REPORT is created for each new build server and for upgrades on servers. The  report lists all I/O features that are installed, the physical slot location, and the assigned  PCHID. A portion of a sample PCHID REPORT is shown in Example 4-2. For more  information about the AID numbering rules for coupling links, see Example 4-2. CHPIDSTART 11357270 PCHID REPORT Apr 23,2018 Machine: 3907-ZR1 SN1 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Source Drwr Slot F/C PCHID/Ports or AID Comment A09/LG01 A09B LG01 0172 AID=10 A09/LG07 A09B LG07 0172 AID=14 A09/LG04/J01 A14B 02 0428 100/D1 101/D2 A09/LG04/J01 A14B 05 0425 10C/D1 A09/LG04/J01 A14B 07 0431 110/D1D2 A09/LG04/J01 A14B 08 0893 114/P00 A09/LG04/J01 A14B 09 0412 118/D1D2 RG1 A09/LG04/J01 A14B 10 0433 11C/D1D2 RG3 A09/LG10/J01 A14B 12 0428 120/D1 121/D2 A09/LG10/J01 A14B 13 0426 124/D1D2 A09/LG10/J01 A14B 14 0431 128/D1D2 A09/LG10/J01 A14B 15 0423 12C/D1D2 Example 4-2 PCHID REPORT 130  IBM 14 Model ZR1 Technical Guide