electrical specifications:

GPI
On: external voltage of 5V or higher (max 30V) between GPI_x(a) and GPI_x(b)
Off: external voltage lower than 2,5V between GPI_x(a) and GPI_x(b)
Duration: minimum 50ms
GPO
Relay type: change-over contact – N.O.
Contact rating: 1A/24 VDC 0,5 A/125 VAC/ max. 62,5VA
max. 60 VDC / 30 W / max. 125

GENERAL:

Backplane connector: ref. to DIN41612, 64pin, a+b, male
Power supply: +5V DC
Consumption: approx. 120mA
Dimensions: 3RU, 4HP, 160mm deep
Installation: hot pluggable