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Pr35 – micr amplitude scale, Pr36 – modem initialization (modem ppp only), Example responses – MagTek MICRImage User Manual

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PR35 – MICR Amplitude Scale

Sets the MICR line low-amplitude detection threshold. Range 0 – 255. Default is 128 which equates to
approximately 42% signal amplitude as described in the X9 MICR Standards. Higher numbers raise the
threshold.

PR35=128

PR36 – Modem Initialization (Modem PPP Only)

Used to initialize the modem.

PR36=S7=50

Set max time to wait for connection