When the Desigo Fire Safety is part of a network of FACP fire alarm control panel nodes communicating over the XNET communication protocol, the OI Alert capabilities can be adjusted in several ways to provide the required level of oversight.
Global OI
With the appropriate hardware upgrade and the proper configuration in the Zeus tool, a FCM2041-U2 can be given global capability over an XNET network of Desigo Fire Safety , MXL and MXL-IQ nodes.
A FCM2041-U2 with global capability is referred to as a Global OI, and it displays events for all nodes within the XNET network. In contrast, a FCM2041-U2 that does not have global capability is referred to as a local (or standard) OI. In a Global OI, the event device address in the Devices screen is displayed as a global address. The first number in a global address is the address of the node that owns the device, followed by the module and device address of the device.
Whether configured as a Global OI or not, an OI always displays all events pertaining to its local node. However, a Global OI can be configured to selectively display the events for remote XNET nodes for specific event types only. For example, a security only Global OI displays all local events, but it only displays the security events that are posted by remote nodes.
In addition to the FCM2041-U2 configuration, the Global OI requires a Global OI configuration file, transferred from the Zeus tool to the OI’s PCMCIA or SD card. The two configuration files must correspond to the same version of the same Zeus project. If the FCM2041-U2 determines that the two files don’t match, it posts a trouble and runs as a local FCM2041-U2.
Scope of Control
A FCM2041-U2 that is configured as Display Only does not provide the ability to acknowledge events, to silence or unsilence the notification appliances, nor to reset the system. When an event occurs in an OI with Display Only, a Silence Buzzer soft key displays in the bottom left corner of the screen. Pressing this key silences the system’s internal audible.
A Global OI that is configured as an OI with Control provides control over the entire network of Desigo Fire Safety . When pressing the soft keys that are available at the bottom of the screen (Acknowledge Events, Silence Audibles, Unsilence Audibles and Reset System), the specific command is executed on all the nodes where it is applicable.
A Global OI that is configured as Display Only may retain control over its local node, if configured this way in the Zeus tool. In this case, it behaves as an OI with Control with regard to its local node, and as an OI with Display Only with regard to the remote nodes. The soft keys at the bottom of the screen are relabeled Local Acknowledge, Local Silence, Local Unsilence and Local Reset, respectively. These control commands apply only to the events and notification appliances in the local node.
Single Point of Control
When configured for Single Point of Control in Zeus (version 12 and above), if a Modular node is granted control of the network, only that node will have Voice, Fire, and MNS control over the entire network. Control is managed by global Voice Command stations associated with the node in control via its Request/Grant/Deny switches. Any Global OI in the network that does not have control via one of its Voice Command Stations will behave as a Display-Only Global OI without local control. The FCM2041-U2 will indicate when the node has global control, as follows:
