TM-U230 Part Numbers and Descriptions 
| Part Number | Description | |
| C31C391211 | TM-U230 with Serial Interface, 2 Color, w/ Coating, Cool White | |
| C31C91A8791 | TM-U230 with Parallel Interface, 2 Color, w/ Coating, Cool White | |
| C31C391221 | TM-U230 with Serial Interface, 2 Color, w/o Coating, Cool White | |
| C31C391A8741 | TM-U230 with Parallel Interface, 2 Color, w/o Coating, Cool White | |
| C31C391201 | TM-U230 with Serial Interface, 2 Color, w/ Coating, Dark Gray | |
| C31C391A8721 | TM-U230 with Parallel Interface, 2 Color, w/ Coating, Dark Gray | |
| C31C391A8691 | TM-U230 with Ethernet Interface, 2 Color, w/ Coating, Dark Gray | |