Appendix B. Cable Specifications - Transition Networks STACKMASTER TR SMHB-TR-16 User Manual

Appendix B. Cable Specifications

Twisted Pair Cable Specifications
Either shielded or unshielded twisted pair can be used. Category 5wire or better is recommended.
• Gauge. . . . . . . . . . . . . . . . . . 26 to 22 AWG
• Attenuation . . . . . . . . . . . . . Less than 11.5 dB @ 5-10 MHz
• Differential Characteristic . . 85 -110
RJ-45 Pin Specifications
Null Modem Cable Specifications
The table below shows the pin assignments for the DB9 cable.
USER/S GUIDE
Impedance
@ 10 MHz
Function
Carrier Detect
Receive Data
Transmit Data
Data Terminal Ready
Signal Ground
Data Set Ready
Request To Send
Clear To Send
Ring Indicator
The two active pairs in the token ring RJ-45
connector are pins 4 & 5 and pins 3 & 6. Use
only dedicated wire pairs (such as blue/white &
white/blue, orange/white & white/orange) for the
active pins.
Straight Through Cable at RJ-45 Plug
RJ-45 Male
3 . . . . . . . . . . . . . . . . . . . . . . 3
4 . . . . . . . . . . . . . . . . . . . . . . 4
5 . . . . . . . . . . . . . . . . . . . . . . 5
6 . . . . . . . . . . . . . . . . . . . . . . 6
Mnemonic
CD
RXD
TXD
DTR
GND
DSR
RTS
CTS
RI
A A P P P P E E N N D D I I X X
RJ-45 Male
B-1