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Systems for Harsh Environments
Systems for Office Environments
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Application
Duct mounted systems
Function and Application The Nexans Switch 100 BM+ series makes switching technology possible in the local loop. This series emphasizes cost-effectiveness and flexibility by making fourfold use of a central LAN connection - the so-called Uplink. |
| There are two types of uplinks: The Fiber-Optic version (the Nexans FiberSwitch 100 BM+) and the Twisted Pair version (the Nexans CopperSwitch 100 BM+). The BM+ systems are enabled for external power supply of Power-over-Ethernet components (according to IEEE802.3af). The FiberSwitch 100 BM+ is fitted with a 100BASE-FX or 100BASE-SX fiber-optic uplink interface on the bottom of the module. The transmission mode can be set from full-duplex (FDX) to half-duplex (HDX). With half-duplex mode, however, a length restriction of 412m has to be observed for the fiber-optic (FO) link in line with the Fast Ethernet standard. However, in the FDX mode a fiber-optic distance of up to 2000m can be bridged. For permanent monitoring of the link the so-called Remote Fault function can be activated. The optical fibers used can either be graded index fibers (GI 50/125 µm or 62.5/125 µm) or singlemode fibers (SM 9/125 µm), depending on requirements. All common optical connectors are supported. |
| A terminal strip on the bottom of the CopperSwitch 100 BM+ module allows the connection to a Twisted Pair port (Uplink) with Cat 5 or IBM Type 1 installation cable. The connecting interface has been designed according to IEEE802.3 10BASE-T and 100BASE-TX for up to 100m. The transmission modes can be set from 100Mbps to 10 Mbps and from FDX to HDX respectively. |
User Ports There are four RJ45 ports available on the user side. Terminal equipment or network segments with a 10/100Mbps Twisted Pair LAN interface can be connected by means of Cat5 cables (up to 100m in length) here. The operating mode is preset to Autonegotiation (see notes on Autonegotiation), and this ensures the transmission mode (100Mbps FDX/HDX or 10Mbps FDX/HDX) is automatically detected for each of the four user ports. The TP ports also feature a selectable MDI/MDI-X auto-crossover function, which eliminates the need to use so-called crossed cables. The Switch automatically detects if the receive (RD) or transmit (TD) pairs are crossed within the Twisted Pair cabling and configures itself accordingly. |
Functionality The self-learning switch works according to the store-and-forward principle. In full-duplex mode it supports flow control according to IEEE802.3x and in half-duplex mode it supports a back-
pressure function. Advanced functionalities can be set and controlled with the BM+ system using a plug-on management module. This allows among others the setting of the transmission modes for each port, monitoring, activation/deactivation of connecting ports, VLAN support, prioritization functions (e.g. port-based, IEEE802.1p,/q, IPv4/v6 DiffServ) and much more. Within the Switch 100 BM+ Series the functionality is adapted to the respective application by simply changing the plug-on modules. A dip-switch or management module is required for operation. The modular architecture allows to insert the modules for configuration. There is no need to remove the system. The transmission parameters on the Switch module are simply set via DIL switches. A plug-on management module provides the possibility of remotely setting and checking the full functionality via the LAN. |
Design he Switch 100 BM+ has been designed as a module for installation in the floor tanks and in cable ducts. Its low mounting depth and the protected routing of the connecting lines extend its field of application to subfloor systems such as subfloor boxes. The systems have an integrated power supply unit and are immediately ready for use as soon as the mains voltage is connected using the 3-pin screw terminal which is included in the delivery. Alternatively the BM+ 48V Series switch and the PoE components (if any), e.g. IEEE802.3af) are remotely supplied with 48 VDC. |
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Software Release V3.61 With immediate effect the Switch Manager Release V3.61 as well as the Firmware Releases V3.61 can be ordered.
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