CAN bus DB9 cables, twisted and built to your length.
wired to the CiA 303-1 DB9 pinout: CAN_L on pin 2, CAN_H on pin 7 and the two twisted together, CAN_GND on pin 3. receptacle to receptacle, or to ferruled leads for a terminal block. genuine Amphenol parts · priced instantly · free 2-day shipping.
Price
the CAN builds, priced.
| build | qty 1, each | qty 10, each | qty 50, each | configure |
|---|---|---|---|---|
| CAN_H/CAN_L twisted + CAN_GND, 12 in (305 mm) | $40.00order minimum | $23.33 | $22.10 | configure |
| CAN_H/CAN_L twisted + CAN_GND, 24 in (610 mm) | $40.00order minimum | $25.38 | $24.05 | configure |
| + CAN_V+ (pin 9) and GND (pin 6), 12 in (305 mm) | $40.00order minimum | $28.50 | $27.00 | configure |
| CAN_L, CAN_H, CAN_GND to 12 in (305 mm) leads with ferrules | $40.00order minimum | $15.67 | $14.84 | configure |
each · free UPS 2-day shipping · $40 order minimum (a smaller order is charged $40) · ships in 10 business days. these are example builds: change the length, pinout and colors in the configurator and it prices the result the same way.
Drawing
the three-wire CAN cable, pin for pin.
3 wires between two DB9s, 22 AWG in the standard color order, the twisted pair drawn twisted. the configurator draws the same diagram for your own pin map and exports it as a PDF.
| end A | end B | wire |
|---|---|---|
| pin 2 CAN_L | pin 2 CAN_L | black, twisted pair T1 |
| pin 7 CAN_H | pin 7 CAN_H | white, twisted pair T1 |
| pin 3 CAN_GND | pin 3 CAN_GND | blue |
Pinout
the CAN DB9 pinout, CiA 303-1.
CAN in Automation's recommendation for a 9-pin D-sub. signals in brackets are optional; reserved pins stay unwired so they're free if a later spec uses them.
| pin | signal | what it is | in this build |
|---|---|---|---|
| 1 | — | reserved | not wired |
| 2 | CAN_L | CAN_L bus line (dominant low) | black wire → pin 2, twisted pair T1 |
| 3 | CAN_GND | CAN ground | blue wire → pin 3 |
| 4 | — | reserved | not wired |
| 5 | (CAN_SHLD) | CAN shield, optional | not wired |
| 6 | (GND) | ground, optional | not wired |
| 7 | CAN_H | CAN_H bus line (dominant high) | white wire → pin 7, twisted pair T1 |
| 8 | — | reserved | not wired |
| 9 | (CAN_V+) | external positive supply, optional | not wired |
source: CiA 303-1 v1.9.0 (2017) §6.1, table 4; CiA now keeps pin assignments in CiA 106.
Connector
DB9 (DE-9)
Wire
20–24 AWG
Length
5–48 in (127–1219 mm)
Lead time
10 business days
Questions
about the CAN bus DB9 cable.
- can I order just one?
- yes, there's no minimum quantity, but there is a $40 order minimum. one 12 in (305 mm) three-wire CAN cable comes to $24.56, so an order of just that is $40; add more and the minimum is covered. shipping is free (UPS 2-day). prices drop at 10 and 50 units.
- why receptacles on both ends?
- CiA 303-1 has the CAN device carry the plug (male pins), so the cable that plugs into it ends in receptacles (sockets). if your device has a receptacle instead, switch that end to a plug in the configurator and it reprices.
- are termination resistors included?
- no. a CAN bus is terminated at both ends of the bus cable, and the configurator has no resistor option, so terminate at the bus ends with your own terminator or the one built into your devices.
- is it shielded?
- no. it's UL1007 hook-up wire with CAN_H and CAN_L twisted together in the shop, not a shielded, impedance-rated CAN bus cable, so pin 5 (CAN_SHLD) isn't wired. if your network calls for rated bus cable, use it for the trunk.
- what about CAN_V+ and the other pins?
- pin 9 (CAN_V+) and pin 6 (GND) are optional in CiA 303-1; the "+ CAN_V+" row above carries them. pins 1, 4 and 8 are reserved and left unwired. any other pin map is a few clicks in the configurator.
- how is it made?
- each wire is tinned and soldered into its contact's solder cup with lead-free solder, then a hood goes over the joints, plastic or zinc, with 4-40 screws to lock it to the mating connector. every cable gets a continuity test.
- what wire gauges and lengths?
- 20, 22, 24 AWG UL1007 hook-up wire, any length, 5–48 in (127–1219 mm). the prices above are at 22 AWG unless a row says otherwise.
- how fast does it ship?
- it's built and shipped in 10 business days, then goes out UPS 2-day.
more in the FAQ, including returns (custom cables are non-returnable; defects replaced).
Related
D-sub by size