Show, Clear, Debug, and Tools Command Reference
526 Basic System Configuration Guide
Quality Level 
Selection
Indicates whether the ql-selection command has been enabled or disabled. 
If this command is enabled, then the reference is selected first using the 
QL value, then by the priority reference order. If this command is not 
enabled, then the reference is selected by the priority reference order.
Reference Selected Indicates which reference has been selected:
• ref1, ref2 - (for all chassis)
•BITS A, BITS B:
→ 7450 ESS-7/12
→ 7750 SR-7/12
→ 7750 SR-12e
→ 7750 SR-1e/2e/3e
→ 7750 SR-a4/8
→ 7950 XRS-16/20
→ 7950 XRS-40
• BITS C, BITS D - (7950 XRS-40)
• Mate CPM (BITS A), Mate CPM (BITS B) - 
show>system>sync-if-timing>standby:
→ 7450 ESS-7/12
→ 7750 SR-7/12
→ 7750 SR-12e
→ 7750 SR-1e/2e/3e
→ 7750 SR-a4/8
→ 7950 XRS-16/20
→ 7950 XRS-40
• Mate CPM (BITS A), Mate CPM (BITS B) - 
show>system>sync-if-timing:
→ 7450 ESS-7/12
→ 7750 SR-7/12
→ 7750 SR-12e
→ 7750 SR-a4/8
Table 70: System Timing Output (Continued)
Label Description  (Continued)