Alloy Computer Products POEGEM12T2SFP 1. Introduction

1. Introduction

The POEGEM12T2SFP features 12 PoE compliant ports running at 10/100/1000Mbps and 2

paired mini-GBIC (SFP) ports. The POEGEM12T2SFP is designed for high port density PoE

applications such as VoIP phone deployment or IP security camera environments. The Intelligent

Layer 2 SNMP management features enable reliable transport of critical VoIP and Security data,

even in congested network environments. VoIP requires prioritisation of Voice Calls over general

Network Data and Security systems require not only prioritisation, but also port based link

security and reporting of link failures to intelligent SNMP applications. These and other intelligent

network features are all supported from the POEGEM12T2SFP switch.

All ports of the POEGEM12T2SFP support the IEEE 802.3af PoE standard for Power Injection

(PSE). This injects PoE power onto the Cat5 Cable when it detects the presence of a PoE

compliant device. When operating with non PoE devices the switch will shut down the power

injecting circuitry and as such not cause any damage to your network devices - but still allow

them to run on the switch as in the case of a normal Ethernet device.

The POE Series Switches use an injection voltage of about 48VDC on pins 1, 2, 3, 6

Intelligent Network features offer a complete management solution that can enable you to scale

your network from a single departmental switch right up to any Enterprise environment. STP and

RSTP offer network redundancy features, IGMP snooping offers support for Streaming Video and

Multicasting images, Tagged VLAN offers logical security and management of nodes within

defined groups. QOS based on port priority queues and TOS bytes ensure efficient forwarding of

critical network data.

All Ports support non-blocking maximum wire speed performance with Auto-negotiation and

Auto-MDIX functions for simplified deployment.

The SFP ports can support the following optional mini-GBIC modules for fibre optic cable

connections (either single-mode or multimode terminated in LC type connectors):

• 1000Mbps multimode 1000Base-SX, 850nm, max. range 500m

• 1000Mbps single-mode 1000Base-LX, 1310nm, max. range 10Km

• 1000Mbps single-mode 1000Base-LHX, 1310nm, max. range 40Km

• 1000Mbps single-mode 1000Base-LHX, 1550nm, max. range 40Km

• 1000Mbps single-mode 1000Base-ZX, 1550nm, max. range 70Km

• 1000Mbps single-mode 1000Base-EZX, 1550nm, max. range 100Km

• 1000Mbps WDM single-mode/single-core 1310nm, max. range 20Km

• 1000Mbps WDM single-mode/single-core 1550nm, max. range 20Km

------This is not an exhaustive list of SFP modules available--------

Notes: * The two WDM (Wave Division Multiplexing) mini-GBIC modules are

designed to facilitate a link over a single core of single-mode fibre cable.

The two units must be used in a paired manner, one at either end of the link.

* Mini-GBIC modules that are designe d to the relevant standards should be

compatible with any make of switch with SPF ports. If you have concerns

regarding compatibility, please contact the supplier of your mini-GBIC

product.