The PTZ serial port settings in <Serial>.
channelId: number
Zero-based channel.
baudRate: number
1200, 2400, 4800 or 9600; the firmware writes 9600 for an unknown index.
dataBit: string
Data bits as a name, such as CS8.
stopBit: number
1 or 2.
parity: "none" | "odd" | "even"
Parity.
flowControl: "none" | "hard" | "xon:xoff"
Flow control.
controlProtocol: "PELCO_D" | "PELCO_P"
PTZ control protocol.
controlAddress: number
PELCO device address.