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724-746-5500 | blackbox.com
724-746-5500 | blackbox.com
Page 23
Chapter 3: Hardware Configuration
Figure 3-3. 4-Port Industrual Serial Server.
Table 3-4. 4-Port Industrial Serial Server bias jumpers.
Port Interface Type Jumper Number Pull Up/Pull Down
1
485 half-duplex
J22 Pull up
J17 Pull down
422/485 full-duplex
J7 Pull up
J21 Pull down
CTS
J13 Pull up
J9 Pull down
2
485 half-duplex
J3 Pull up
J2 Pull down
422/485 full-duplex
J8 Pull up
J20 Pull down
CTS
J14 Pull up
J28 Pull down
3
485 half-duplex
J12 Pull up
J27 Pull down
422/485 full-duplex
J6 Pull up
J19 Pull down
CTS
J11 Pull up
J26 Pull down
4
485 half-duplex
J16 Pull up
J24 Pull down
422/485 full-duplex
J5 Pull up
J18 Pull down
CTS
J10 Pull up
J25 Pull down