E1-tap » History » Revision 5
Revision 4 (laforge, 05/09/2017 05:15 AM) → Revision 5/6 (laforge, 01/06/2020 04:15 PM)
{{>toc}} h1. E1/T1 Tap The Osmocom E1/T1 tap adapter allows you to tap into the communication of an E1/T1 line. This is useful for tracing/analyzing communications on any type of E1 based interface, such as A-bis, A and core network interfaces in GSM networks, as well as classic ISDN networks. Two RJ-45 ports are used for passing through your existing E1 line. Using a switch (SW1), the pass-through can be configured in straight or cross-over mode. Two additional RJ-45 sockets are provided for tapping into either of the two pairs (Rx/Tx) of the E1 line. An additional switch (SW2) can be used to select between high and low impedance tapping. All ports are configured in Digium-compatible pin-out, i,e, pairs 1+2 / 4+5 h2. PCB Photograph !e1-tap.jpg! h2. Schematics !e1-tap-sch.png! h2. Availability The E1/T1 tap adapter is available for purchase from http://shop.sysmocom.de/products/e1-t1-tap-adapter