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Making the Hardware Connections
14 Chapter 2 Manual Documentation Number: ESR90x-0508m
B&B Electronics Mfg Co Inc – 707 Dayton Rd - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 – www.bb-elec.com
B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-europe.com
J11
J7
J4
J13 J6
J10
J5
J9 J3
J12
Figure 6. ESR901 Bias Jumper Locations
Connector Interface Type
Jumper
Number
Pull up/pull down
Terminal
block
485 half duplex
J12 pull up
J6 pull down
422/485 full duplex
J7 pull up
J13 pull down
DB-9
485 half duplex
J3 pull up
J9 pull down
422/485 full duplex
J5 pull up
J11 pull down
CTS
J4 pull up
J10 pull down
Figure 7. ESR901 Bias Jumpers