aluRS232ControlLeadsSignal is an array of byte values used to indicate the current signal levels of the input and output control leads (connected to the attached CPE). These values are the ones that get signalled over the (physical) line. As such, they are sometimes referred to as LINE-side values. For network-side values, see aluRS232ControlLeadsState. Each byte in the array represents the signal level of an individual control lead. The byte order is as follows: A byte value of 1 represents on (or high as per AluRS232ControlLead). A byte value of 2 represents off (or low as per AluRS232ControlLead). All other byte values are undefined. A particular byte is undefined if its config counterpart is undefined. For example, given an X.21 interface, aluRS232ControlLeadDsrDtr is undefined thus, aluRS232ControlLeadsSignal byte 'DtrDsr' is also undefined. Some bytes can represent something else depending on the interface type. For example, given an RS-530, RdlRi represents LlTm. See the respective object for details (eg. aluRS232ControlLeadRdlRi).