Black Box 16-Port Rackmount 10/100 Installation Manual page 61

The arrows in Figure 12-6 represent the direction of the signal. The pinouts assume that the
8-conductor cable connecting the Terminal Server and the adapter block is a swapped
cable. Both the transmit and receive ground signals on the Terminal Server connector are
wired to the signal ground on a DB9 adapter.
The information about crimping the RJ45 ground wires in RJ45 to DB25 applies to the DB9
connector as well.
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