I/O Specification
	Digital Inputs Analogue Inputs Pulse Inputs Serial Interface PLC Interface Landmark Up to 64 on standard transmitter Up to 8 on standard transmitter 2 on standard transmitter As standard on Receiver - optional on Transmitter Available on Receiver using PCON adapter MQ 8 on controller, then 8 on each additional module 1 on controller, then 1 or 4 on each additional module 1 on each additional digital module As standard on Receiver - optional on Transmitter Available on Receiver using PCON adapter Radio Modems None None None Transparent RS232 RS232 suitable for DF1, Modbus etc.
	Transmission Options
	Low-Power Radio Leased-Line GSM Mobile Phone Two-wire RS485 Landmark Standard In Development Available with PCON adapter Available with PCON adapter Not Available MQ Standard In Development Available with PCON adapter Available with PCON adapter Optional