ESE ES-251 1x24 RS-232-C Distribution Amplifier, DB-9
The ES-251 is the DB-9 counterpart to the ES-250, buffering one RS-232-C input across 24 isolated outputs so ASCII time code or any other RS-232 signal can serve two dozen destinations without cross-talk between them. A male DB-9 takes the input and 24 female DB-9 connectors carry the outputs, each able to drive a single user up to 50 feet away.
Channel 1 includes an RxD feed-thru for query-style applications that need a return path, and the connector choice makes it a straight drop-in for equipment already wired for DB-9 RS-232 rather than terminal blocks. It runs on 110-120 VAC standard with a 220-240 VAC option, and UL options are available.
| Function | 1x24 RS-232-C isolation and distribution amplifier |
|---|---|
| Input Connector | Male DB-9 |
| Output Connectors | 24 female DB-9 |
| Max Distance per Output | 50 ft |
| Special Feature | RxD feed-thru on Channel 1 for query applications |
| Power | 110-120 VAC standard; 220-240 VAC available |
| Certifications | UL options available |










