Siemens OD-GP Outer Door Grill PlateThe Outer Door Grill Plate (Model OD GP), which is furnished in black, covers an entire row on the outer door of a Siemens Modular (or FireFinder) system cabinet, but has four (4) rows of ventilation louvers on it. Model OD GP is mounted in front of system bulk amplifiers, card amplifiers, or other modules that generate heat. Using Model OD GP will permit airflow across these modules to aid in heat dissipation. One (1) grill plate is included with