Network Ring Card, NRC 2nd Generation - Siemens

ARCHITECT AND ENGINEER SPECIFICATIONS

• Second-generation network ring card for FireFinder XLS
• Provides single / multi-mode fiber-optic or copper connections
• Provides ‘Class X’ (Style 7) peer-to-peer XNET communication
   in a ring topology
• Isolates short-circuit faults
• Ground-fault detection
• Network repeater
• Downloadable firmware

Product Overview
The Network Ring Card – the second generation of Model NRC from Siemens Industry, Inc. – is a networking card that transmits communication data via copper lines, or through single-mode (Model FN2006-U1) or multi-mode (Model FN2007-U1) fiber-optic cable. Model NRC uses a ‘Class X’ (Style 7) ring configuration to work with FireFinder XLS fire alarm control panels (FACPs).

Specifications
One (1) Model NRC (per system node) provides XNET, peerto-peer communication between FireFinder XLS FACPs, allowing a max, 64, XLS FACPs to be networked together. Model NRC must reside in the same enclosure as the Person Machine Interface (PMI). ModelNRC supervises the XNETring network to insure proper operation. Model NRC also isolates a short-circuit fault to each individual segment of the
XNET network. The Network Ring Card performs ground-fault detection on its outgoing ring port. Any detected faults are reported to the Person Machine Interface for annunciation. ModelNRC isolates faults to an individual node, allowing communication on the network ring to continue.
Additionally, Model NRC provides an electrical repeater for each XNET pair.

The front bezel for the 2nd Generation of Model NRC contains one (1) reset switch;three (3) LEDs; one (1) RJ-45 port; one (1) RJ-11port, and one (1) USB port.

There is a singular Power LED and diagnostic LEDs for indication of Card Fail and Trouble. Universal Serial Bus (USB) and RJ-45 jacks provide a connection for firmware download. A RJ-11 monitor jack allows for connection to diagnostic tools.

Used in conjunction with a XNET NIC-C,the 2nd Generation Network Ring Card allows network communication to Siemens management stations. Management stations do not reside directly on the ring, but receive communication via a point-to-point connection. This communication process allows events to be displayed at the command center. Trouble, Acknowledge, Alarm-Silence and System-Reset commands are also supported at the connected management station. The Management station can also be used to perform Maintenance commands on an individual FireFinder XLS on the XNET Siemens Network.

ModelNRC takes one (1) card slot, and mounts in a Model CC-2 or CC-5 card cage inside a Model CAB-1, Model CAB-2, or Model CAB-3 enclosure. For copper connections, Model NRC supports 22 AWG min. to 12 AWG max shielded or unshielded twisted pair with a minimum of three (3) twists per foot. Dependent upon the wire type that is used, a maximum
distance of 3,300 feet (1,006m) per pair is supported between each card.

Specifications – (continued)
As an option, a communications bracket (Model COM-BRK) may be used for mounting to either Model FN2006-U1, which is the single-mode fiberoptic module, or to Model FN2007-U1, which is the multi-mode fiber-optic module. Additionally, Model COM-BRK utilizes a two-slot location within a Model CAB-1, CAB-2 or CAB-3 enclosure.

Temperature and Humidity Range
The Network Ring Card is UL 864 9th Edition Listed for indoor dry locations within a temperature range of 120+/-3°F (49+/-2°C) to 32+/-3°F (0+/-2°C) and a relative humidity of 93+/-2% at a temperature of 90+/-3°F (32+/-2°C).

Electrical Ratings
― 2nd Generation Ring Card ―