The Problem With Fish. All fish contain trace amounts of mercury. For most people, the small amounts in fish do not pose a health problem. Some fish, however, contain high amounts of mercury -- enough to damage a fetus or newborn. That is why pregnant and nursing mothers must be very careful about the amounts and types of fish they eat.
RS-232 devices may be classified as Data Terminal Equipment (DTE) or Data Circuit-terminating Equipment (DCE); this defines at each device which wires will be sending and receiving each signal. According to the standard, male connectors have DTE pin functions, and female connectors have DCE pin functions.
When the board is operating as a DCE and the DTE provides terminal timing (SCTE or TT), the dce-terminal-timing enable command causes the DCE to use SCTE from the DTE. Examples The following example prevents phase shifting of the data with respect to the clock: Router(config)# interface serial 0 Router(config-if)# dce-terminal-timing enable To prevent phase shifting of the data with respect to the clock when running the line at high speeds and long distances, use the  command in interface configuration mode.