The Grade 6 link in Birmingham ROC (The former West Midlands Signalling Centre) works three workstations: Walsall, Bescot and Stourbridge, All track circuit only, no axle counters,
12 hour roster. 0700-1900 days and 1900-0700 nights. The link is one of the lower grades in BROC. The Saltley link, (Washwood Heath, Water Orton, Bromsgrove and Kings Norton workstations) is Grade 7, Wolverhampton is Grade 7, Cherwell Valley is Grade 7, BROC South (Coventry, North Warwick and Snow Hill workstations) is Grade 7. The highest grade is the New Street link (Stour Valley, New Street Station and Proof House workstations) That is Grade 9. The lowest is Telford, Grade 5.