At a glance, the three J1939-to-DB9 cables below look interchangeable — and for most applications, they functionally are. All three share the same CAN High and CAN Low pin assignments, run high-speed CAN (ISO 11898-2), and terminate in a Type 2 9-pin Deutsch connector that fits the vast majority of heavy-duty vehicles. What differs is manufacturer, cable length, and price — and at $39, the Grid Connect cable delivers the same core J1939 connectivity as the $94 PEAK and $60 CSS Electronics options, with the longest length of the three (2 m). The comparison chart below puts everything side by side so you can confirm exactly where they line up.
| Product features | CAN bus cable J1939 Type 2 connector - 2 meter | Deutsch-to-DB9 Adapter Cable (J1939 Type 2) | PCAN-Cable J1939 Type 2 |
|---|---|---|---|
| Product identification | |||
| Manufacturer | Grid Connect | CSS Electronics | PEAK System Technik |
| MPN | GC-CAN-CAB-J1939-T2-2M-GC | A002 | IPEK-003019 |
| SKU | GC-CAN-CAB-J1939-T2-2M-GC | GC-CSS-DB9-DEUTSCH-CABLE | GC-CAN-CAB-DEU-TYPE2 |
| Price (USD) | $39.00 | $60.00 | $94.00 |
| Physical specifications | |||
| Connectors | DB9 female to J1939 9-pin Deutsch (female) | DB9 female to J1939 9-pin Deutsch (female) | 9-pin D-Sub to 9-pole DEUTSCH HD series |
| J1939 connector type | Type 2 | Type 2 | Type 2 |
| Cable length | 2 m (6.6 ft) | 1.5 m (4.9 ft) | 1 m (3.3 ft) |
| Cable thickness | 22 AWG (0.50 mm²) | 22 AWG (0.50 mm²) | Not specified |
| Operating temperature | -20°C to +80°C (-4°F to +176°F) | -20°C to +80°C (-4°F to +176°F) | Not specified |
| Overmolded construction | Yes | Yes | No |
| Termination resistor | No | No | No |
| Applications | |||
| High-speed CAN (ISO 11898-2) | Yes | Yes | Yes |
| SAE J1939 | Yes | Yes | Yes |
| CANedge / CLX000 data logger compatible | Yes | Yes | No |
| PEAK CAN interface compatible | Yes | Yes | Yes |
| Pinout | |||
| CAN High | DB9 pin 7 → Deutsch C | DB9 pin 7 → Deutsch C | DB9 pin 7 → Deutsch C |
| CAN Low | DB9 pin 2 → Deutsch D | DB9 pin 2 → Deutsch D | DB9 pin 2 → Deutsch D |
| Ground | DB9 pin 3 → Deutsch A | DB9 pin 3 → Deutsch A | Not connected |
| Power (VCC) | DB9 pin 9 → Deutsch B | DB9 pin 9 → Deutsch B | Not connected |
| CAN Shield | Not specified | Not specified | Deutsch E |
| DB9 pinout standard | CiA® 102 / 303-1 | CiA® 102 / 303-1 | CiA® 102 / 303-1 |
