Siemens FC2050 - X1401;X1801 Terminal Blocks for Detector Circuits 1 & 3; X1402;X1802 Terminal Blocks for Detector Circuits 2 & 4

FS20 Marine Fire Detection Control Panel
67
Siemens Industry, Inc. A6V10519176_enUS_b
Building Technologies Division
Both circuits are supervised and power limited.
12.6.1 X1401 and X1801 Terminal Block
Detector Circuits 1 and 3
X1401: Circuit driver 1, circuit 1
X1801: Circuit driver 2, circuit 3
Pin
Designation
Description
1 2- Return feed for circuit 1-2 or circuit 3-2
2 2+ Positive output for circuit 1-2 or circuit 3-2
3 1- Return feed for circuit 1-1 or circuit 3-1
4 1+ Positive output for circuit 1-1 or circuit 3-1
Admissible cable cross-section: 1 x 12…18 AWG or 2 x 16…18 AWG
12.6.2 X1402 and X1802 Terminal Block
Detector Circuits 2 and 4
X1401: Circuit driver 1, circuit 2
X1801: Circuit driver 2, circuit 4
Pin
Designation
Description
1 2- Return feed for circuit 2-2 or circuit 4-2
2 2+ Positive output for circuit 2-2 or circuit 4-2
3 1- Return feed for circuit 2-1 or circuit 4-1
4 1+ Positive output for circuit 2-1 or circuit 4-1
Admissible cable cross-section: 1 x 12…18 AWG or 2 x 16…18 AWG