Grinberg at 11:31, 24 May 2016

2016-05-24T11:31:44Z

New page

== Description ==
[[Image:SB_SOM_topview2.jpg|thumb|right|alt=SB-SOM top view|<div align="center">SB-SOM top view</div>]]
[[Image:SB_SOM_bottomview2.jpg|thumb|right|alt=SB-SOM bottom view|<div align="center">SB-SOM bottom view</div>]]

P23 is a 4pin 100mil header designed to allow easy evaluation of CAN bus functionality.
P23 is available with all SB-SOM carrier board configurations (board rev1.2 or later).

P23 serves two functions (simultaneously):
# Allows translation of system-on-module CAN interface signals (usually RX and TX signals at TTL levels) into the CAN_H and CAN_L signals ready for connection to a CAN bus node (CAN physical level) as instructed below:
## Connect system-on-module CAN TX (output) signal should to pin P23-1 using a jumper wire.
## Connect system-on-module CAN RX (input) signal should to pin P23-4 using a jumper wire.
#: System-on-module CAN interface signals (CAN RX and CAN TX) are in most cases accessible through one of the below SB-SOM connectors:
#:# Connector '''P4'''
#:# Connector '''P5'''
#:# Connector '''P11'''
#:# Connector '''P18'''
# Allows enabling/disabling SB-SOM onboard CAN bus termination resistance (120Ω) as instructed below.
#* Populate a jumper cap shorting pins P23-3 and P23-2 to enable CAN bus termination.
#* Remove jumper cap from pins P23-3 and P23-2 to disable CAN bus termination.

{{note|Please refer to SB-SOM carrier board schematics and system-on-module hardware reference manual for pin functions, connector pinout and other details on your specific system.}}

'''More Details:''' ''[[SB-SOM:_Connectors:_P4|Connector P4]]'', ''[[SB-SOM:_Connectors:_P5|Connector P5]]'', ''[[SB-SOM:_Connectors:_P11|Connector P11]]'', ''[[SB-SOM:_Connectors:_P18|Connector P18]]''.

== Connector Data ==
<blockquote>
{| border="1" cellspacing="1" cellpadding="3" style="border-collapse:collapse"
! colspan=2 | P23 connector
|-
! Manufacturer
! MFG P/N
|-
| Jih_Vei_Electronics
| 21B1164-04S10-01G-6/3 {ROHS}
|-
|}
</blockquote>

[[Category:SB-SOM]]

SB-SOM: Connectors: P23 - Revision history

Grinberg at 11:31, 24 May 2016