Doug Fleenor Design DMXOPTO-5 User Manual
Page 9
8
Typical Characteristic Impedances of Control Wire
BELDEN SERIES NUMBER
NOMINAL IMPEDANCE
9804
100 Ohms
8132
120 Ohms
9829
100 Ohms
8332
Not Rated
9501
Not Rated
8102
100 Ohms
9729
100 Ohms
8162
100 Ohms
9990
50 Ohms
*
9841
120 Ohms
9880
100 Ohms
8777
50 Ohms
*
9873
50 Ohms
*
9773
50 Ohms
*
*
EIA-485 drivers (on which DMX512 is based) are rated for a
minimum load impedance of 60 Ohms. Use of cables with a
characteristic impedance of less than 100 Ohms is not
recommended. If such cables are used, terminate with a
minimum of 60 Ohms. If the impedance of the control cable
is not known, a termination of 120 Ohms is recommended.
See also other documents in the category Doug Fleenor Design Accessories for electrical:
- 121 (5 pages)
- NODE4 (15 pages)
- 125EE (2 pages)
- 125EE-WALL (2 pages)
- RR (Rotor-Router) (8 pages)
- Marconi TX (1 page)
- Marconi SP (1 page)
- Marconi LV (1 page)
- 221E (2 pages)
- 221E-WALL (2 pages)
- ColorWheel (5 pages)
- DMX8DIM (7 pages)
- DMX24DIM (6 pages)
- RK6-1 (1 page)
- RK8-1 (1 page)
- RK8-2 (1 page)
- RK16-1 (1 page)
- DMX1REL20A (1 page)
- DMX6REL15A (1 page)
- DMX2REL5A (2 pages)
- DMX6REL1A (1 page)
- 2322DMX (7 pages)
- DMXDECELERATOR (2 pages)
- DMX24ANL (6 pages)
- DMX2DALI (2 pages)
- ALARM INTERFACE (2 pages)
- PRE10-A (7 pages)
- PRE10-A2 (9 pages)
- PRE10-P (6 pages)
- RAD (1 page)
- RAD-ZIPI (1 page)
- RERUN-A (14 pages)
- RERUN-P (12 pages)
- RERUN-A Addendum (1 page)
- ES2 (5 pages)
- GIZMO Manual (11 pages)
- GIZMO Fast Start (1 page)
- GIZMO PIC Update Guide (1 page)
- General Purpose Interface OEM board (1 page)