The GIS switches are connected in a redundant loop via fibers. The path is as follows:
GIC SWITCH
S4A.GIC.1 / S4A.R1.U18.S2F.1
S4A.ACWFT.S3R.1 / E1A.ACWFT.S2R.4
E1A.ACWFT.S2F.7 / EIA.301.SAF.1
ENCLOSURE SWITCH 1
EIA.301.SAF.2 / E1A.301.S2F.9
E1A.301.S2R.9 / E2A.504.S1R.3
E2A.504.S1F.3 / E2A.504.SAF.2
ENCLOSURE SWITCH 2
E2A.504.SAF.1 / E2A.504.S1F.1
E2A.504.S1R.1 / E1A.301.S2R.7
E1A.301.S2F.7 / E1A.302.S1F.9
E1A.301.S1R.9 / E1A.ACWMT.S2F.6
E1A.ACWMT.S2R.6 / S4A.ACWFT.S3R.3
S4A.ACWFT.S3F.3 / S4A.R1.U18.S6R.1
S4A.R1.U18.S6F.1 / T1A.MEJ1.U25.S2R.1
T1A.MEJ1.U25.S2F.1 / T1A.MCC2.SAF.1
TELESCOPE MOUNT SWITCH
T1A.MCC2.SAF.2 / T3A.M1.ULCL.S1R.3
T3A.M1.ULCL.S1F.3 / T3A.PAC.U18.1
OSS SWITCH 1
T3A.PAC.U18.2 / T3A.M1.ULCL.S1F.4
T3A.M1.ULCL.S1R.4 / T1A.MEJ1.U25.S3F.4
T1A.MEJ1.U25.S3R.4 / S4A.R1.U18.S8F.4
S4A.R1.U18.S8R.4 / S3A.A3.U46.S6R.4
S3A.A3.U46.S6F.4 / S3A.A3.U46.S12F.7
S3A.A3.U46.S12R.7 / S1A.R1.U45.S4R.1
S1A.R1.U45.S4F.1 / S1A.R1.U45.S3F.1
S1A.R1.U45.S3R.1 / C1A.R1.S1F.1
C1A.R1.S1R.1 / C1A.R6.ULT.S2R.1
C1A.R6.ULT.S2F.1 / C1A.R6.U25.1
INSTRUMENT SWITCH
C1A.R6.U25.2 / C1A.R6.ULT.S2F.2
C1A.R6.ULT.S2R.2 / C1A.R1.S1R.2
C1A.R1.S1F.2 / C1A.R1.S4R.2
C1A.R1.S4F.2 / C1A.CCC.2
COUDE SWITCH
C1A.CCC.1 / C1A.R1.S4F.1
C1A.R1.S4R.1 / C1A.R1.S3R.1
C1A.R1.S3F.1 / S1A.R1.U45.S1R.1
S1A.R1.U45.S1F.1 / S1A.R1.U45.S6F.5
S1A.R1.U45.S6R.5 / S3A.A3.U46.S12R.5
S3A.A3.U46.S12F.5 / S3A.A3.U46.S8F.3
S3A.A3.U46.S8R.3 / S4A.R1.U18.S12R.3
S4A.R1.U18.S12F.3 / S4A.GIC.2
GIC SWITCH (BACK TO TOP)