B&B Electronics ESR902 User Manual
Making the Hardware Connections
Manual Documentation Number: ESR90x-0508m
Chapter 2
15
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
J14
J11
J7
J4
J3
J6
J10
J15
J1 6
J13
J9
J2
Figure 8.
ESR902 Bias Jumper Locations
Port Interface
Type
Jumper
Number
Pull up/pull down
1
485 half duplex
J2 pull
up
J10 pull
down
422/485 full duplex
J4 pull
up
J14 pull
down
CTS
J7 pull
up
J6 pull
down
2
485 half duplex
J9 pull
up
J15 pull
down
422/485 full duplex
J3 pull
up
J13 pull
down
CTS
J11 pull
up
J16 pull
down
Figure 9.
ESR902 Bias Jumpers