Motorola AP-7131 Product Reference Manual page 170

5-32 AP-7131 Access Point Product Reference Guide
3. Set the parameters in the Configuration field as required for the WLAN.
ESSID Enter the Extended Services Set Identification (ESSID) associated
with the WLAN. The WLAN name is auto-generated using the
ESSID until changed by the user. The maximum number of
characters that can be used for the ESSID is 32. Do not use any of
the following characters for an ESSID < > | " & \ ? ,