1. ZPL II, ZBI 2, Set-Get-Do, Mirror, WML Programming Guide
  2. SGD Wireless Commands
  3. wlan.channel_mask
  • ZPL II, ZBI 2, Set-Get-Do, Mirror, WML Programming Guide
wlan.channel_mask

wlan.channel_mask

This command specifies the wireless channel masks for enabling and disabling various channels. This controls which b/g radio channels can be used by the radio for network connections.
The value for this command is a bit field where a 0 disables a channel and a 1 enables the channel. Starting from the right, bit 0 is for channel 1, bit 1 for channel 2, etc. This can be used to limit the channels scanned for networks, which may slightly improve connection and roaming speed. It also used to ensure compliance with the regulatory domains of your location.
Commonly Used Channel Mask Settings
Region
Channels
Channel Mask
United States, Canada, Latin America
1 - 11
0x7FF
Europe, Middle East, Africa, other
1 - 13
0x1FFF
Japan
1 - 14
0x3FFF
This command is not supported by all radios. Ensure the channel masks are set in accordance with the regulatory domains of your country.

Setvar

To instruct the printer to set the wireless channel mask value:
! U1 setvar "wlan.channel_mask" "value"
Values
"0x0000"
 to
"0xFFFF"
 (4 hexadecimal digits preceded by
"0x"
)
Default
"0x7FF"

Getvar

To instruct the printer to set the wireless channel mask value:
! U1 getvar "wlan.channel_mask"
Example 1
This
setvar
example shows the value set to
"0x7FF" for common North American channels
. 
! U1 setvar "wlan.channel_mask" "0x7FF"
Example 2
This setvar example sets the channel mask to use only channels 1,6,11. 
! U1 setvar "wlan.channel_mask" "0x421"
Only channels 1, 6, and 11 will be used by the radio.