The ECS-LOC2100 (red) or ECS-LOC2100B (black) are a combination supervised remote microphone and annunciator which is compatible with the ECS-Series Emergency Communication System. The ECSLOC2100/ECS-LOC2100B meets UL requirements for an LOC. The ECS-LOC2100/ECS-LOC2100B includes a ECS-RVM Remote Voice Module and its associated RA-2000 keypad annunciator. The ECS-RVM provides an interface to the Emergency Communication System and the RA-2000 annunciator is capable of performing complete operation of the fi re alarm system, including silencing and resetting. The IFP-2100ECS or IFP-2000ECS can support a maximum of 15 ECS-LOCs, ECS-LOC2100, or ECS-LOC2100B's in any combination.