SPC Series

SPC is a 16 × 18-inch combined hand/person/countdown family, with separate 80–135Vac, 10–28Vdc and 36–60Vdc options published in Resources. Select by the existing module label and measured cabinet supply; these are separate versions, not one universal-input unit. Include the voltage-specific order code on each bid and spare-stock line so an AC face cannot be substituted for a matching-size DC face.

Specifications & documents
SPC series 16 with18 pedestrian countdown signal module

Further reading
16-Inch Pedestrian Signal Modules: Size and Display Guide

The published AC sheet describes SW as a toggle that enables or disables the countdown digits. DS provides accessible DIP switches for user-selectable options. They are not the same feature. The sheet does not enumerate every DS setting, so the required sequence must be matched to the corresponding installation instructions. Choose the switch version by its documented function, rather than assuming either switch gives arbitrary controller timing adjustment.

Example order record: an approved 80–135Vac combined hand/person/countdown application requiring local countdown enable/disable should identify the appropriate SW model and tested toggle setting. A project needing a different selectable behavior needs the corresponding DS instructions and confirmed order code. The switch suffix does not change an AC unit into a DC unit or establish the controller timing.

Specifications & documents
SPC series 16 with18 pedestrian countdown signal module · SPC series 16″ x 18 pedestrian countdown signal module with dip switch

Further reading
16-Inch Pedestrian Signal Modules: Size and Display Guide

SPC combines a Lunar White walking person, Portland Orange hand and countdown digits in one 16 × 18-inch module; its published digit height is 9 inches. CD provides countdown digits only, and HM provides overlapping hand/person symbols without a countdown. A conversion to SPC therefore changes the face arrangement as well as the module. Check the signal housing and approved indication layout before consolidating separate displays.

Specifications & documents
SPC series 16 with18 pedestrian countdown signal module · CD Series 12″ x 12″ Countdown Signal Module

Further reading
16-Inch Pedestrian Signal Modules: Size and Display Guide

For the AC SPC version, the sheet lists power factor above 0.90, THD below 20%, switching response under 75ms and an internal conflict monitor intended to prevent simultaneous WALK and DON’T WALK indications. It also describes hand/person monitoring for up to eight modules in parallel. Those features support cabinet review; they do not establish interchangeable operation with every controller, load switch or external conflict monitor.

Specifications & documents
SPC series 16 with18 pedestrian countdown signal module

Use the actual controller, cabinet and selected SPC switch version. Record the WALK, flashing hand, steady hand and countdown sequence, including the agency’s required preemption and recovery tests. The published module is described as preemption compatible, but that does not document the behavior of every controller program. Retain the tested settings and module suffix so a replacement or later switch adjustment reproduces the accepted operation.

This is an example record structure, not a universal timing plan or a substitute for manufacturer wiring instructions. The responsible agency defines the required sequence, tests and acceptance limits; the field record demonstrates whether the selected combination met those requirements.

Specifications & documents
SPC series 16 with18 pedestrian countdown signal module

Further reading
Pedestrian Countdown Displays and Accessible Pedestrian Signals

SPC supplies visual hand/person/countdown indications. The published module specification does not establish a complete audible, vibrotactile or pushbutton accessibility system. Treat those functions as separately specified intersection equipment and verify their interaction with the visual sequence. Choosing the correct SPC face is one component decision; it does not establish accessibility of the entire crossing.

Specifications & documents
SPC series 16 with18 pedestrian countdown signal module

Further reading
Pedestrian Countdown Displays and Accessible Pedestrian Signals

The SPC sheet lists a five-year limited warranty and an LED intensity-maintenance claim of 70% at 100,000 operating hours. These describe different things: a light-output claim is not a 100,000-hour warranty for the full signal system. Use the written signal warranty for claims and maintain records of order code, installation and defects. DT’s 15-year terms do not apply to SPC merely because both are LEOTEK signals.

Specifications & documents
SPC series 16 with18 pedestrian countdown signal module

Further reading
Long-Life LED Traffic Signals: Replacement Cost and ROI

The AC sheet lists 8.3W for the hand, 8.9W for the person and 5.1W for the countdown. Use the actual energized sequence and duration rather than adding every indication as if continuously on. For spares, record supply variant, switch suffix, face size, termination and installed model. This supports both a realistic operating-cost comparison and correct replacement procurement.

Specifications & documents
SPC series 16 with18 pedestrian countdown signal module

Further reading
Long-Life LED Traffic Signals: Replacement Cost and ROI