DDC Online direct digital controls
Novar - Logic One  

System Architecture

Date Last Saved: 6/29/2004 8:23:30 AM

This section distinguishes between Operator Interfaces and Field Interfaces to the BAS. The Operator Interface refers to the main 'front-end' method for accessing and operating the BAS. The Field Interfaces typically access the BAS from the controller-level and have limited functionality, and may include HID, LDP, and ZBI as described below. This section describes the devices only; OI functionality is generally covered in the Software, while Field Interface functionality is detailed further in the individual Controllers
Operator Interfaces (OI)
Dedicated Operator Workstation (OWS)
Dedicated PC(s) with proprietary workstation software
PC with SITE Pro software
"Thin" Client Browser
"Thick" Client Browser
Product Application(s): N.A.
Handheld Interface Devices (HID)
PDA-Based No
Proprietary No
Local Display Panel (LDP) Local displays are provided with Lingo (EP/2), Savvy, and IOM/2 controllers. The MAP (Manager's Alarm Panel) is available for connection to the primary network to provide access to alarm events only.
Zone Based Interfaces (ZBI)
Thermostat with communication port to access local controller/network Available. See individual controllers for more information
Other thermostat types available (without communication ports)
Interface to BAS Networks None possible
Compatible with the building's IT network? No
Protocol(s) Proprietary over Ethernet
Cabling and Speeds STP or Fiber @ 10 Mbps
Expansion Capability Lingo and EP/2: maximum of 32 PCUs can be networked Savvy: No PCU networking.
Additional Information
Peer-to-Peer or Polling? Polling
Protocol(s) Proprietary - Closed
Cabling and Speeds STP @ 9.6 kbps
Expansion Capability With Lingo and EP/2: Up to 128 controllers With Savvy: Up 31 controllers
Additional Information
Includes a listing of available Gateways, Routers and other devices that provide additional communications flexibility into and out of the BAS. Repeaters, bridges, standard modems and the like are typically not included here. Note: If in use by the BAS, the Internet/building IT Network is extremely open and non-proprietary. If a vendor uses the IT Network, CI devices such as IP routers and hubs can be purchased from third parties.