Colocated Hub » History » Version 4
laforge, 08/29/2022 04:17 PM
| 1 | 2 | laforge | {{>toc}} |
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| 2 | |||
| 3 | 1 | laforge | h1. Colocated Hub |
| 4 | |||
| 5 | 4 | laforge | This page exists to collect planning about the future colocated OCTOI hub, see #5542 |
| 6 | 2 | laforge | |
| 7 | 4 | laforge | h2. Rackmount units |
| 8 | 1 | laforge | |
| 9 | 4 | laforge | h3. Central Office server (2U / 67cm) |
| 10 | 1 | laforge | |
| 11 | 4 | laforge | This is a 2U rack-mount server running all the relevant software. |
| 12 | 1 | laforge | |
| 13 | 4 | laforge | See [[AVSt_Server]] for more details of the server |
| 14 | 1 | laforge | |
| 15 | 4 | laforge | h4. Connections |
| 16 | 1 | laforge | |
| 17 | 4 | laforge | This is a 2U rack-mount server with the following connections: |
| 18 | * Power |
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| 19 | ** 2x AC power connections (Redundand PSU) |
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| 20 | * Ethernet |
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| 21 | ** 1x RJ45 100-Base-TX BMC |
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| 22 | ** 2x RJ45 1000-Base-TX |
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| 23 | * E1 |
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| 24 | ** 8x E1 to a co-located Cisco AS5400 (see below) |
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| 25 | ** 1x E1 to a co-located Livingston PM3 (see below) |
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| 26 | ** 1x E1 to icE1usb/clock-source |
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| 27 | 1 | laforge | |
| 28 | |||
| 29 | 4 | laforge | h3. icE1usb / E1 clock source (1U / 31cm) |
| 30 | 1 | laforge | |
| 31 | 4 | laforge | This is a 1U rack mount system containing: |
| 32 | * a PC-Engines APU3 embedded x86_64 |
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| 33 | * an [[e1-t1-adapter:ICE40_E1_USB_interface|icE1usb]] with a custom RS422 interface board |
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| 34 | * a custom rs422 over voltage protection + 12V injection board |
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| 35 | 1 | laforge | |
| 36 | 4 | laforge | This icE1usb acts as a GPS-disciplined clock master. However, as no acutal RF GPS signal is available in the data centre, we are using an Ericsson [[ericsson-rbs-6xxx:GPS_02]] attached via ~100m of RS-422. |
| 37 | 1 | laforge | |
| 38 | 4 | laforge | h4. Connections |
| 39 | 1 | laforge | |
| 40 | 4 | laforge | * Power |
| 41 | ** 2x AC power connections (1x APU, 1x RS422/GPS) |
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| 42 | * Ethernet |
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| 43 | * RS422 |
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| 44 | ** 1x RJ45 towards GPS02 on the roof |
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| 45 | 1 | laforge | |
| 46 | |||
| 47 | 4 | laforge | h3. Cisco AS5400 RAS Server (2U / 49cm) |
| 48 | 1 | laforge | |
| 49 | 4 | laforge | h4. Connections |
| 50 | 1 | laforge | |
| 51 | 4 | laforge | * Power |
| 52 | ** 2x AC power connection (redundant PSU) |
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| 53 | * Ethernet |
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| 54 | ** 1x RJ45 Ethernet (100-Base-TX) to internal VLAN |
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| 55 | * E1 |
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| 56 | ** 8x E1 (via break-out cable) to AVSt-Server |
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| 57 | |||
| 58 | |||
| 59 | h3. Livingstion Portmaster 3 (2U / 31cm) |
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| 60 | |||
| 61 | h4. Connections |
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| 62 | |||
| 63 | * Power |
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| 64 | ** 1x AC power connection |
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| 65 | * Ethernet |
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| 66 | ** 1x RJ45 Ethernet (10-Base-TX) [yes, 10MBps] |
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| 67 | * E1 |
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| 68 | ** 1x E1 to AVSt-Server |
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| 69 | |||
| 70 | |||
| 71 | h2. Roof installation |
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| 72 | |||
| 73 | |||
| 74 | On the roof of the data centre, the CAT5 cable with RS422 for the GPS03 arrives. |
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| 75 | |||
| 76 | It will be passed through several DIN rail mounted OVP (Over Voltage Protection) circuits before connecting to the actual DIN-rail mounted Ericsson GPS03 |
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| 77 | |||
| 78 | The Ericsson GPS03 has a SMA connector, to which a SMA-male to N-Male coaxial cable is attached. |
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| 79 | |||
| 80 | A Times Microwave LP-GTR-NFF lightning protector (N-female to N-femaile) is used to pass the coaxial cable through the enclosure |
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| 81 | |||
| 82 | An external GPS antenna with N connector is plugged into the LP-GTR-NFF |
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| 83 | |||
| 84 | |||
| 85 | 2 | laforge | |
| 86 | |||
| 87 | 1 | laforge | h2. Software |
| 88 | |||
| 89 | 3 | laforge | * Like in the current hub at @laforge's basement, we should run the entire yate / osmo-e1d / dahdi-trunkdev inside a KVM with SRV-IO mapping the PCI devices |
| 90 | |||
| 91 | |||
| 92 | h2. Misc / TODO |
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| 93 | |||
| 94 | h3. local verification with modem/ISDN-TA |
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| 95 | |||
| 96 | It would be great if we could somehow verify local calls via the yate / hub excluding the complexity of the TDMoIP to compare calls without TDMoIP to calls with TDMoIP. |
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| 97 | |||
| 98 | Unfortuantely I'm not aware of any really small PBX that would terminate the E1/S2M and offer S0/POTS ports. Adding antoher 3U for a PBX seems excessive. |
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| 99 | |||
| 100 | 1 | laforge | Doing calls between PM3 and ASR5400 is of course an option, but ideally we'd have a real physical modem attached via a serial port, and a real HFC-S-USB for test purpose. |
