| Article number | 6ES7441-2AA05-0AE0 | 
|  | CP 441-2, PTP-CONN.., 2 CHANNELS | 
| Supply voltage |  | 
| Rated value (DC) |  | 
| ● 5 V DC | Yes | 
| ● 24 V DC | Yes | 
| Input current |  | 
| from backplane bus 5 V DC, max. | 300 mA; Without interface module | 
| Power loss |  | 
| Power loss, typ. | 2.7 W; incl. 2x20mA TTY module | 
| Memory |  | 
| Memory requirements per interface in memory card of S7-CPU | 1 to 5 KB for parameters; 0 to 55 KB for message texts; 0 to 64 KB for loadable drivers | 
| Interfaces |  | 
| Number of interfaces | 2; variable | 
| Point-to-point connection |  | 
| ● Transmission rate, max. | 115.2 kbit/s; Min. 300 bps | 
| ● supported printers | HP-Deskjet, HP-Laserjet, IBM-Proprinter, user-defined | 
| Integrated protocol driver |  | 
| — 3964 (R) | Yes | 
| — ASCII | Yes | 
| — RK 512 | Yes | 
| — Printer | Yes | 
| — customer-specific drivers reloadable | No | 
| Transmission rate, 20 mA (TTY) |  | 
| — with 3964 (R) protocol, max. | 19.2 kbit/s | 
| — with ASCII protocol, max. | 19.2 kbit/s | 
| — with printer driver, max. | 19.2 kbit/s | 
| — with RK 512 protocol, max. | 19.2 kbit/s | 
| Transmission rate, RS 422/485 |  | 
| — with 3964 (R) protocol, max. | 115.2 kbit/s | 
| — with ASCII protocol, max. | 115.2 kbit/s | 
| — with printer driver, max. | 115.2 kbit/s | 
| — with RK 512 protocol, max. | 115.2 kbit/s | 
| Transmission speed, RS 232 |  | 
| — with 3964 (R) protocol, max. | 115.2 kbit/s | 
| — with ASCII protocol, max. | 115.2 kbit/s | 
| — with printer driver, max. | 115.2 kbit/s | 
| — with RK 512 protocol, max. | 115.2 kbit/s | 
| Ambient conditions |  | 
| Ambient temperature during operation |  | 
| ● min. | 0 °C | 
| ● max. | 60 °C | 
| Ambient temperature during storage/transportation |  | 
| ● min. | 0 °C | 
| ● max. | 70 °C | 
| Relative humidity |  | 
| ● Operation, max. | 95 %; no condensation | 
| Dimensions |  | 
| Width | 25 mm | 
| Height | 290 mm | 
| Depth | 210 mm | 
| Weights |  | 
| Weight, approx. | 580 g; Interface modules: 80 g |