
  CONST
    nlc$tcpaa_outgoing_pdu_base = 1400(16),      { host to device }
    nlc$tcpaa_incoming_pdu_base = 1480(16),      { device to host }

{ Incoming PDU kinds.

    nlc$tcpaa_listen_confirm_ind = nlc$tcpaa_incoming_pdu_base + 0,
    nlc$tcpaa_listen_reject_ind = nlc$tcpaa_incoming_pdu_base + 1,
    nlc$tcpaa_connect_ind = nlc$tcpaa_incoming_pdu_base + 2,
    nlc$tcpaa_connect_confirm_ind = nlc$tcpaa_incoming_pdu_base + 3,
    nlc$tcpaa_release_ind = nlc$tcpaa_incoming_pdu_base + 4,
    nlc$tcpaa_data_ind = nlc$tcpaa_incoming_pdu_base + 5,
    nlc$tcpaa_flush_release_ind = nlc$tcpaa_incoming_pdu_base + 6,

{ Outgoing PDU kinds.

    nlc$tcpaa_listen_req = nlc$tcpaa_outgoing_pdu_base + 0,
    nlc$tcpaa_connect_req = nlc$tcpaa_outgoing_pdu_base + 1,
    nlc$tcpaa_accept_connect_req = nlc$tcpaa_outgoing_pdu_base + 2,
    nlc$tcpaa_release_req = nlc$tcpaa_outgoing_pdu_base + 3,
    nlc$tcpaa_data_req = nlc$tcpaa_outgoing_pdu_base + 4,
    nlc$tcpaa_set_options_req = nlc$tcpaa_outgoing_pdu_base + 5,
    nlc$tcpaa_flush_release_req = nlc$tcpaa_outgoing_pdu_base + 6;

  TYPE
    nlt$tcpaa_pdu_kind = 0 .. 0ffff(16);

