Installation Instructions

ManualsBrandsSiemens ManualsFire - LMS Management StationsSNC Serial Network Card for USB Application with Windows, Installation Instructions

A6V101018824_en--_d Siemens Industry, Inc.

Smart Infrastructure

Model SNC

Serial Network Card for USB Application with Windows

OPERATION

The Model SNC from Siemens Industry, Inc. (as shown in Figure 1) is a USB-compliant network card

used with the Siemens Management Stations. The SNC provides a supervised RS-485 network

connection. The SNC operates in both Class B and Class X. The SNC allows the user to interface net-

worked MXL and/or XLS/Desigo Fire Safety Modular/Cerberus PRO Modular fire panels to Desigo

CCs/Cerberus DMS’ and/or NCCs on XNET.

The SNC can also provide an interface to WAN components in NCC WAN and Desigo CC/Cerberus DMS

WAN configurations. On the NCC, one SNC may be used for XNet, and one may be used for HNet

connection to WAN components.

On Desigo CC/Cerberus DMS, depending on the computer model, up to two or four SNC cards may be

installed for support of multiple XNet networks and/or WAN enclosures.

The module fits in any available PCI or PCI Express compliant slot. The card is NOT dependent on the

slot connection and the tab is only used for additional support. The tab can be scored off if connectivity

problems are encountered. Depending on the model, either one or two SNC modules comes pre-installed

in Management Station computers. Hardware installation instructions for the SNC, when it is not factory

installed, can be found in the Physical Installation section of this document.

Controls and Indicators

The LEDs are located above X1 and are, in top to bottom order. See Figure 1 for more details.

LED

Color

Description

NET OK

(DS2)

Green

Blinks to indicate network is

receiving data.

HOST OK

(DS1)

Green

Blinks to indicate data to

transmit.

CH A

(DS4)

Yellow

Blinks* to indicate individual

Channel A select.

CH B

(DS5)

Yellow

Blinks* to indicate individual

Channel B select.

* If LED is steady, indicates a Class X fault on that channel.

Summary of content (12 pages)

PAGE 1
Installation Instructions Model SNC Serial Network Card for USB Application with Windows OPERATION The Model SNC from Siemens Industry, Inc. (as shown in Figure 1) is a USB-compliant network card used with the Siemens Management Stations. The SNC provides a supervised RS-485 network connection. The SNC operates in both Class B and Class X.
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NET OK DS2 HOST OK DS1 CH A DS4 CH B DS5 X3 1 1 2 3 4 5 S1 SNC 5 TB1 RESET S2 SIDE VIEW Figure 1 SNC Module Board CONFIGURATION The SNC is assigned to a standard COM port by Windows when the drivers are installed. The drivers usually come pre-installed in NCC/Desigo CC/Cerberus DMS. The SNC driver installations are covered in the Driver Installation section of this document. The COM port assigned to the SNC can be viewed in the Windows Device Manager. One SNC card occupies one COM port.
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Figure 2 shows a sample Windows 7 or 10 Device Manager view and a typical assignment of COM ports on a PC with two SNC boards installed (COM13 and COM14). The port assignments for the SNC are labeled USB Serial Port, once installed and under Properties, the FTDI driver is identified. Figure 2 Device Manager View The port assignment can be changed to agree with any port assignment at the time of install or update. Either board can handle XNET and either board can handle HNET.
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PHYSICAL INSTALLATION NOTE 1: Remove all Windows PC power before installation. NOTE 2: The SNC connects to the motherboard internal USB2.0 connector via a cable harness provided (see Step 7 below). On most motherboards, the USB2.0 header/pin-out consists of nine pins arranged in two rows which allows for two USB connections. Normally, but NOT always, the pins for USB1 and USB2 are in separate rows as shown below. TYPICAL PIN ASSIGNMENTS Pin 5 S-GND is also colored black and it is NOT required.
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ELECTRICAL CONNECTIONS The HNET/XNET connections are made on terminals 1-4 of the terminal block on the front of the SNC (see Step 4 in Physical Installation). The primary pair (or network A) is on terminals 1 and 2. The secondary pair (or network B) is on terminals 3 and 4. Install a 120 ohm EOLR, P/N 140-820350, on terminals 1 and 2, as well as terminals 3 and 4. For Class B networks, connect only the primary pairs (Network A).
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PAIR B (OMIT FOR CLASS-B) SUPERVISED POWER LIMITED TO ADDITIONAL NIM-1Rs, NIM-1Ws, SNCs OR NIC-Cs PAIR A SUPERVISED POWER LIMITED DO NOT USE 1 2 DO NOT USE 3 4 5 6 7 8 1 2 3 4 5 SNC 9 10 11 12 13 14 SEE NOTE 8 15 16 DO NOT USE NIC-C (MUST BE IN SAME ENCLOSURE AS THE PMI) ONE SLOT OF CC-5 17 18 19 20 21 22 23 LOCATED INSIDE NCC/DESIGO CC/CERBERUS DMS NOTE: IF THE NCC/DESIGO CC/ CERBERUS DMS IS LOCATED AT THE END OF THE XNET NETWORK, INSTALL EOLR P/N 140-820350 ACROSS TERMIN
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* * * EOLR 120 OHMS, 1/2W, 5% P/N 140-820350 NETWORK B (SECONDARY) SUPERVISED OMIT THIS PAIR FOR CLASS B NETWORK A (PRIMARY) SUPERVISED 1 SNC 2 9 3 10 11 4 12 5 13 6 14 7 15 8 NETWORK A (PRIMARY) SUPERVISED 16 NIC-C ONE SLOT OF CC-5 Figure 4 SNC HNET (WAN) Connections NOTES: 1. The screw terminals can accommodate one 12-24AWG or two16-24AWG. 2. From the SNC to NIC-C: 2000 feet (33.8 ohms) max. per pair between CC-5s/CC-2s. Unshielded twisted pair .25µF max.
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Shields Shields for the XNET/HNET must be connected at ONE end of the network. Earth Ground A good earth ground must be provided for proper transient protection of the SNC and the computer. Connect a separate ground to terminal 5 on the SNC. See Figures 3 or 4 as applicable. Ground Fault Detection The SNC provides electrical isolation between the NCC or Desigo CC/Cerberus DMS computer and the XNET. This allows for ground fault detection to be enabled on the XNET.
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DRIVER INSTALLATION The drivers usually come pre-installed in NCC/Desigo CC/Cerberus DMS computers. In case the drivers need to be installed in another computer, follow the instructions below. The products which utilize the SNC cards run on Microsoft Windows 7 or 10 operating systems (OS). When a PC with an SNC card is first started, the card is detected by Windows.
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NRC BASED XNET CONNECTION For connections of SNCs to NRC based XNet networks, see section NRC Based XNet Connections in the NRC Installation Instructions, Document ID A6V10322639. ELECTRICAL RATINGS All connections are supervised and power limited unless stated otherwise. Input Voltage: 5V (from USB) Input Current: 80mA Max A6V101018824_en--_d Siemens Industry Inc.
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Cyber security disclaimer Siemens provides a portfolio of products, solutions, systems and services that includes security functions that support the secure operation of plants, systems, machines and networks. In the field of Building Technologies, this includes building automation and control, fire safety, security management as well as physical security systems.
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Siemens Industry, Inc. Smart Infrastructure 8 Fernwood Rd. Florham Park, NJ 07932 Siemens Canada, Ltd.