d>12</td><td>DC2</td><td>&amp;#018;</td><td></td><td>Device Control 2</td></tr>
    <tr><td>19</td><td>13</td><td>DC3</td><td>&amp;#019;</td><td></td><td>Device Control 3 (oft. XOFF)</td></tr>
    <tr><td>20</td><td>14</td><td>DC4</td><td>&amp;#020;</td><td></td><td>Device Control 4</td></tr>
    <tr><td>21</td><td>15</td><td>NAK</td><td>&amp;#021;</td><td></td><td>Negative Acknowledgement</td></tr>
    <tr><td>22</td><td>16</td><td>SYN</td><td>&amp;#022;</td><td></td><td>Synchronous Idle</td></tr>
    <tr>