Metrodata Technical Bulletins for engineers to be able to carry out simple operations to their products.
| Bulletin Number | Technical Bulletin | PDF File |
| TB6 | Installing the LM1100 Card in Metrodata DSU Products |  |
| TB7 | Metrodata DSU 2M Prom Change | |
| TB8 | Metrodata DC2000 Loop-back Disable Modification | |
| TB9 | Metrodata FM4850 Fuse Replacement | |
| TB10 | HSSI Loop Back Plugs | |
| TB11 | -48 Volt DC Supply Connectors | |
| TB12 | AC PSU Replacement | |
| TB13 | X.21 Test Loop Back Plug | |
| TB14 | Metrodata AP 4000/8000 Range PSU Change | |
| TB15 | X.21 Cross over cable | |
| TB16 | Metrodata DC3X00 PROM Change | |
| TB18 | V.35 Loopback Plug specification for Metrodata DC3200 | |
| TB19 | Metrodata Management Options | |
