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--- networking:retro:catalyst3100-workgroup-stack [12/06/2025 14:32] – andrew
+++ networking:retro:catalyst3100-workgroup-stack [13/06/2025 22:08] (current) – [With Ethernet module] andrew
@@ Line 2: / Line 2: @@
 Definately a Retro project, this is a 10 MB/s catalyst switch base unit with an expansion module called a "Flex Slot" above.
-In fact this is so old that Cisco have a new Catalyst 3100 product ([[https://www.cisco.com/c/en/us/support/switches/catalyst-ie3100-rugged-series/series.html]]), a rugged industrial style switch with 1GB/s SFPs fitted!! Wow!! From 1oMB/s to 1GB/s!
+In fact this is so old that Cisco have a new Catalyst 3100 product ([[https://www.cisco.com/c/en/us/support/switches/catalyst-ie3100-rugged-series/series.html]]), a rugged industrial style switch with 1GB/s SFPs fitted!! Wow!! From 10MB/s to 1GB/s!
 The base unit has the console serial port for setup, an AUI port which is shared with RJ45 E1, and another AUI labelled "SPAN". Not sure what this does yet.
@@ Line 10: / Line 10: @@
 ===== With Ethernet module =====
-Just for fun, this is fitted with two fast ethernet fibre on ST connectors I think module:-
+Just for fun here is one of the few pics on the internet of a 3100, this one is fitted with a module with two fast ethernet fibre on ST connectors I think:-
 {{networking:retro:cisco-3100-wg-stack1.jpg|}}
@@ Line 16: / Line 16: @@
 ===== With Router Module =====
-{{:networking:retro:img_20250611_221927.jpg?500|}}
+{{:networking:retro:img_20250611_221927.jpg?600|}}
 The switches I have are fitted with a router module, this is functionally the same as a 2500 router with two 60 pin sockets for the WAN, and an AUX serial connector. It also has an ISDN BRI socket.
@@ Line 27: / Line 27: @@
 I think the G703 BNC ports can just be crossed over Rx to Tx, maybe with one set to the clock master. The Nokia DNT2 may be more fun as they connect back to the exchange with SDSL on two pairs, not sure if I can just cross Rx to Tx and expect them to work.
+However, this picture from Nokia's documentation suggests this may be possible:-
+{{:telecoms:dnt2-point-to-point-example.png?400 |}}