2N VoiceBlue Next v3.0 - Manual (Page 24)

Brief Installation Guide 2.3
24
Pair Mounting
Follow the instructions below to rack mount two GSM gateways into one 1U place:
1) Put the GSM gateways next to each other making their sides touch each other.
Fit the short wings (included in the package) onto the free gateway ends with
the screws enclosed.
2) Insert the connecting plates (BE CAREFUL! The rear and upper connecting
plates have different drilled holes – the upper plate holes are larger and
without threading) in the upper and rear holes of one GSM gateway first. Then
connect the other unit.