# Schematic for HL Series and AT/Ex AT Commands

**URL:** <https://forum.sierrawireless.com/t/schematic-for-hl-series-and-at-ex-at-commands/8030>\
**Category:** Documentation feedback\
**Created:** [July 1, 2015, 3:27pm UTC](https://forum.sierrawireless.com/t/schematic-for-hl-series-and-at-ex-at-commands/8030 "2015-07-01T15:27:42Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![wests\_gtp](https://avatars.discourse-cdn.com/v4/letter/w/7bcc69/32.png) [@wests\_gtp](https://forum.sierrawireless.com/u/wests_gtp)\
**Post date:** [July 1, 2015, 3:27pm UTC](https://forum.sierrawireless.com/t/schematic-for-hl-series-and-at-ex-at-commands/8030/1 "2015-07-01T15:27:42Z")

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I have a link to the HL development kit pdf, but the schematics are blurry. Is there a link or a document that you can attach to this? Also, both of AT/Ex AT commands documents cannot be found on the website.

Can you send updated links for the [source.sierrawireless.com](http://source.sierrawireless.com)?

Thanks!

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**Author:** ![krima919](https://avatars.discourse-cdn.com/v4/letter/k/94ad74/32.png) [@krima919](https://forum.sierrawireless.com/u/krima919)\
**Post date:** [July 2, 2015, 6:49am UTC](https://forum.sierrawireless.com/t/schematic-for-hl-series-and-at-ex-at-commands/8030/2 "2015-07-02T06:49:20Z")

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The AT command guide is here:  
[http://source.sierrawireless.com/resources/airprime/software/airprime\_hl6\_and\_hl8\_series\_at\_commands\_interface\_guide/](http://source.sierrawireless.com/resources/airprime/software/airprime_hl6_and_hl8_series_at_commands_interface_guide/)