Technical data

Making the Hardware Connections
Documentation Number: LES40xA-1105m Chapter 2 17
Black Box Corporation - 1000 Park Drive - Lawrence, PA 15055-1018
www.blackbox.com -- Tech Support and Ordering: 724-746-5500 - Fax: [phone]
Port Interface Type
Jumper
Number
Pull up/pull down
J22 pull up
485 half duplex
J17 pull down
J7 pull up
422/485 full duplex
J21 pull down
J13 pull up
1
CTS
J9 pull down
J3 pull up
485 half duplex
J2 pull down
J8 pull up
422/485 full duplex
J20 pull down
J14 pull up
2
CTS
J28 pull down
J12 pull up
485 half duplex
J27 pull down
J6 pull up
422/485 full duplex
J19 pull down
J11 pull up
3
CTS
J26 pull down
J16 pull up
485 half duplex
J24 pull down
J5 pull up
422/485 full duplex
J18 pull down
J10 pull up
4
CTS
J25 pull down
Figure 11. 4 Port Industrial Serial Server Bias Jumpers
Making the Hardware Connections
18 Chapter 2 Documentation Number: LES40xA-1105m
Black Box Corporation - 1000 Park Drive - Lawrence, PA 15055-1018
www.blackbox.com -- Tech Support and Ordering: 724-746-5500 - Fax: [phone]