{"product_id":"alcatel-90003700-rj45-10-100tx-ethernet-network-module","title":"Alcatel 90003700 RJ45 10\/100TX Ethernet Network Module","description":"\u003cdiv\u003e\u003cp\u003eAlcatel 90003700 ESM-CU-12 is a 12-port RJ45 Ethernet module that adds copper 10\/100BASE-TX connectivity to Alcatel-Lucent switching platforms. Also catalogued as the Alcatel Xylan ESM-CU-12, this module provides 12 x RJ-45 ports supporting 10\/100 Mbps Ethernet, enabling straightforward expansion of user or device connections in enterprise networks. As a dedicated Ethernet module, it is designed to integrate into compatible Alcatel-Lucent chassis or line cards to increase port density at the access layer. The 90003700 designation and ESM-CU-12 model name are consistently cited in product listings under the same part number, confirming its role as a copper-based 12-port Ethernet expansion module. Typical deployment scenarios include expanding workstations, printers, and other networked devices in LAN environments where 10\/100 Mbps copper connectivity is sufficient, or where upgrading port density on legacy Alcatel-Lucent switches is required without upgrading to gigabit ports. When sourcing this part, buyers will recognize it by the 12-port RJ-45 configuration and the 90003700 \/ ESM-CU-12 identifiers, ensuring compatibility with documented Alcatel-Lucent chassis ecosystems that support 12-port copper Ethernet modules.\u003c\/p\u003e\u003c\/div\u003e","brand":"Alcatel","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51657179791662,"sku":null,"price":181.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_393e6129-7763-4571-a33e-8c51ecfae6c5.jpg?v=1769466630","url":"https:\/\/plgautomation.com\/products\/alcatel-90003700-rj45-10-100tx-ethernet-network-module","provider":"PLG Automation ","version":"1.0","type":"link"}