Sierra Wireless WISMO218 - Manual (Page 6)

WA_DEV_W218_PTS_002 Rev 005 Page 6 of 109
Product Technical Specification &
Customer Design Guidelines
Rev Date List of Updates
004 October 27, 2009
 Updated Class A Operating Temperature Range
 Updated documentation reference
005 November 23, 2009
ON/~OFF Signal:
 Added an extra note about controlling the signal via an open
collector switching transistor
 Updated Figure 30 to include a figure showing the signal connection
via an open collector transistor
 Set the low level pulse length to 5.5sec
 Updated Figure 32 to include the 5.5s low level pulse length
TX_CTRL Signal for TX Burst Indication:
 Added TX_CTRL frequency and duration
 Updated Figure 36 to include T
duration
 Updated Figure 37 (added the transistor, T601)