Black Box 16 port, 24 port manual Connection from the 25-pin Admin Port to a Terminal, 139

Connection from the 25-pin Admin Port to a Terminal

Black Box 25-pin	Admin Port			Terminal
DB25				DB25
TXD	3	———————>	3	RXD
RXD	2	<———————	2	TXD
GND	7	————————	7	GND

For a terminal operating at speeds faster than 9600 baud, or for a terminal which cannot use xon/xoff flow control, the following connections are required:

Black Box device			Terminal
RS232 RJ45			DB25
RXD	6	<———————— 2	TXD
TXD	5	—————--—> 3	RXD
RTS	8	<———————— 4 or	RTS or
		20	DTR
*CTS	7	—————--—> 5	*CTS
S/GND	4	———————- 7	S/GND

Notes:

1.In addition to the signals shown in the examples above, you may connect Protective Ground (P/GND) if you have shielded twisted-pair (STP) cable. Connect P/GND at either your equipment or the Black Box device (but not both). P/GND will reduce interference in noisy environments.

2.* asterisk denotes that you connect CTS to CTS only if input flow control (from the Terminal to the Black Box device) is required.

Black Box Console Server user guide 139