Apc Rj45 Serial Cable Pinout
APC UPS Interface Cables UPS serial interface cables that provide direct communication between UPSs and desktops, workstations, and servers. For operating systems with basic shutdown capabilities, Cable Interface Kits are available for use with all APC UPSs with dedicated RS-232 serial ports. Shut Down (dumb mode) / RS-232 RX In (smart mode) Set high for 1-5 sec to activate shutdown. Line Fail (dumb mode) / RS-232 TX Out (smart mode) On-battery power (normally low but goes high when the UPS switches to batteries) 3. Line Fail signal. Mains down (normally low but goes high when line fail) 4,9. Serial port: Access internal menus by connecting this port (RJ-11 modular port) to a serial port on your computer, using the supplied serial cable (APC part number 940-0144). The cable 940-0144 on amazon would cost me 95$ with shipping and tax. There is one on ebay a bit cheaper. UPS Cables that provide dedicated connections between APC UPSs and desktops, workstations, and servers. For operating systems with basic shutdown capabilities, UPS Cable Interface Kits are available for use with all APC UPSs with dedicated RS-232 serial ports. An extension cable lets your UPS send signals over longer distances.
Usb To Rj45 Cable
UPS Communications Cable Smart Signalling 6'/2m - DB9 To RJ45 ...
| Pin | Signal | Description |
| 1 | Shut Down (dumb mode) / RS-232 RX In (smart mode) | Set high for 1-5 sec to activate shutdown. |
| 2 | Line Fail (dumb mode) / RS-232 TX Out (smart mode) | On-battery power (normally low but goes high when the UPS switches to batteries) |
| 3 | Line Fail signal | Mains down (normally low but goes high when line fail) |
| 4,9 | GND | Ground, chassis |
| 5 | Low battery signal | (normally low but goes high when low battery) |
| 6 | Line fail signal | Inverse of pin 2 Line Fail signal |
| 7 | UPS Turn-on/off signal | (on advanced UPSes only) |
| 8 | Unregulated +24 Vdc Out ?? |