Come on and DSLAM!

Two Siemens Surpass DSLAMs, one ADSL one VDSL.

[[people:mciancia:start]], [[people:implr:start]] and [[people:q3k:start]] are looking at this.

=== Access ===

Lab ADSL DSLAM (HiX 5620 A50) can be reached by  ''telnet 185.236.240.67 2137'' from boston-packets or the space LAN.

=== Downloads ===
Documentation and firmware (search engine proof):

<code>
aHR0cHM6Ly9vYmplY3QuY2VwaC13YXczLmhzd2F3Lm5ldC9xM2stcGVyc29uYWwvMDdjYjZhYWIz
NmY2ZjI0YThhNGVmOTkzMmIxNzNiMWZhMDdkMzI1NWU5NmVkYjI2NjMzYmU4YmVhM2Y4YTIxNy50
YXIK
</code>

==== FXS ====

We have a companion FXS rack device, Audio Codes MP-124D/FXS/AC. It's currently at q3k's place.

=== Components ===

  * Main MCU: PowerQUICC MPC860PZQ80D4
  * Line interface: 12x PEB3264 and PEB4266
  * Custom ASICs (codecs?): 6x AC482-C (three more footprints unpopulated)

=== PSU Recap ===

The output smoothing caps on the PSU (APSI-605AC Rev.C) are bad. Here's the values jotted down so that q3k can order some new ones:

^ Refdes ^ Capacitance ^ Voltage ^ Diameter ^ Height ^ Lead spacing ^ Replacement ^
| C9, C10, C14 | 470uF | 63V | 16mm | 20mm | 7.5mm | EEU-FS1K471S |
| C15, C17, | 220uF | 100V | 16mm | 25mm | 7.5mm | UHE2A221MHD6TN |
| C19, C20, C22 | 1200uF | 10V | 10mm | 20mm | 5mm | EEU-FS1E122B |

C19 is bulged. C10 is burst. The rest look fine (after desoldering, no, the bottom plugs are also slightly pushed out on some of the others - good call to replace them regardless), but should be replaced regardless.

There's also a primary side 100uF/400V cap (C13) that has been measured to be ~97uF, which is good enough so is left alone for now.

=== JTAG Pinout ===

Refdes J8 'JTAG'.

^ Function ^ Pin ^ Pin ^ Function ^
|    Diode |   1 |   2 | Diode    |
|    Diode |   3 |   4 | GND      |
|     3v3? |   5 |   6 | GND      |
|     Hi-Z |   7 |   8 | GND      |
|     Hi-Z |   9 |  10 | GND      |
|    Diode |  11 |  12 | GND      |
|     Hi-Z |  13 |  14 | Hi-Z     |
|     Hi-Z |  15 |  16 | Diode    |
|     Hi-Z |  17 |  18 | Hi-Z     |
|     Hi-Z |  19 |  20 | Hi-Z     |

Diode means a diode was detected (0.3V-1.6V) from that pin to ground. Hi-z means there didn't seem to be a diode between that pin to ground. This looks like a custom JTAG connector, q3k will attempt to discover the pinout once the PSU is fixed.

There's also a BDM connector on board.