The Patton Model 51 DB-9 PockeTester™ monitors the seven most important async EIA-574 (RS-232 on a DB-9) data and control lines. The Model 51 uses seven tri-state LEDs to indicate the presence of the following signals: TD, RD, DTR, DSR, RTS, CTS and DCD. A red light = Mark, a green light = Space and no light indicates no signal on the line. No AC power or batteries required.
| Patton Electronics Co. | |
|---|---|
| Product Category | Cable Testers |
| Product Number | Model 51 |
| Product Name | DB-9 Pocketester™ |
| Configuration | Handheld |
