Built-in buzzer and RTC (real-time clock)

1-port device server w/ M12 connector (ethernet, power input), RS-232/422/485 DB9 male, -25 to 55℃

8-port desktop device server, 2 10/100M ethernet, RS-232/422/485 8-pin RJ45, 12~48 VDC, 0~60℃

8-port desktop device server, 2 10/100M ethernet, RS-232/422/485 DB9 male, 12~48 VDC, -40~75℃

8-port desktop device server, 2 10/100M ethernet, RS-232/422/485 DB9 male, 12~48 VDC, 0~60℃

8-port desktop device server, 2 10/100M ethernet, RS-232/422/485 DB9 male, w/ 1.5 kV isolation, 12~48 VDC, -40~75℃

8-port desktop device server, 2 10/100M ethernet, RS-232/422/485 DB9 male, w/ 1.5 kV isolation, 12~48 VDC, 0~60℃