Table 7. Flag polarity selection
Jumper |
| Function | Factory | |
| setting | |||
|
|
|
| |
|
|
|
| |
|
| ON: MARK (do not accept data) = |
| |
| JNOR | Current ON | O N | |
|
|
| ||
|
| ON: MARK (do not accept data)= |
| |
|
|
| ||
J5 |
| Negative EIA level |
| |
|
|
|
| |
| ON: MARK (do not accept data) = |
| ||
|
|
| ||
| JREV | Current | OFF | O F F |
|
|
| ||
|
| ON: MARK (do not accept data)= | ||
|
|
| ||
|
| Positive EIA level |
| |
|
|
|
|
|
Note
Either the JNOR or JREV jumper must be connected.
12