E1-tap » History » Version 4
laforge, 05/09/2017 05:15 AM
| 1 | 1 | laforge | h1. E1/T1 Tap |
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| 2 | 2 | laforge | |
| 3 | 4 | laforge | The Osmocom E1/T1 tap adapter allows you to tap into the communication of an E1/T1 line. |
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| 5 | 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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| 7 | 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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| 9 | 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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| 11 | An additional switch (SW2) can be used to select between high and low impedance tapping. |
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| 13 | All ports are configured in Digium-compatible pin-out, i,e, pairs 1+2 / 4+5 |
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| 15 | 3 | laforge | h2. PCB Photograph |
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| 17 | 2 | laforge | !e1-tap.jpg! |
| 18 | 3 | laforge | |
| 19 | h2. Schematics |
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| 21 | !e1-tap-sch.png! |
