Use the following table to determine the part number for the field replaceable unit (FRU):
| CCIN or FFC | Type and model | Part number | Description | Location code |
| 837 | 9117-MMA | 88G3842 | Remote async node, 16-port EIA-232 enhanced remote async node | |
| 837 | 9117-MMA | 93H6549 | Remote async node, 16-port EIA-232 rack mounted node | |
| 837 | 9117-MMA | 40H2589; | Remote async node, 16-port EIA-232 power supply | |
| 837 | 9117-MMA | 80P3869 | Remote async node |