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E1-tap » History » Version 5

laforge, 01/06/2020 04:15 PM

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h1. E1/T1 Tap
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The Osmocom E1/T1 tap adapter allows you to tap into the communication of an E1/T1 line.
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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.
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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.
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Two additional RJ-45 sockets are provided for tapping into either of the two pairs (Rx/Tx) of the E1 line.
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An additional switch (SW2) can be used to select between high and low impedance tapping.
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All ports are configured in Digium-compatible pin-out, i,e, pairs 1+2 / 4+5
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h2. PCB Photograph
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!e1-tap.jpg!
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h2. Schematics
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!e1-tap-sch.png!
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h2. Availability
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The E1/T1 tap adapter is available for purchase from http://shop.sysmocom.de/products/e1-t1-tap-adapter
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