Signal Head
AssemblyThe weatherproof housing that stacks the individual light units, with a background plate that makes the aspects readable against daylight sky. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Signal Head
6 top-level lines as of r136745| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Head Housing | railway-signal-head-housing | 1× | 1 | · | part |
| 2 | Background Plate | railway-signal-backboard | 1× | 1 | · | part |
| 3 | Rear Access Door | railway-signal-access-door | 1× | 1 | · | part |
| 4 | Alignment Mount | railway-signal-alignment-mount | 1× | 1 | · | part |
| 5 | O-Ring Set | oring-set | 1× | 1 | · | part |
| 6 | Fastener Set | fastener-set | 2× | 2 | · | part |