User manual

5 Chapter 1
• Current Value: 4~20mA
• Mode: Asynchronous, full duplex
• Baud-rate: 50 ~ 57,600 bps
• Transmission Distance: 1000 m
1.4 Ordering Information
1.4.1 PCL Communication Cards
• PCL-740: RS-232/RS-422/RS-485/current-loop serial interface card
• PCL-741: Isolated dual-port RS-232/current-loop interface card
• PCL-743B: 2-port RS-422/485 communication card
• PCL-743S: 2-port RS-422/485 communication card with surge protec-
tion
• PCL-745B: 2-port RS-422/485 communication card with isolation pro-
tection
• PCL-745S: 2-port RS-422/485 communication card with isolation and
surge protection
• PCL-746+: 4-port serial interface card. Includes 30-cm DB-37-to-DB-
25 cable
• PCL-846A: 4-port RS-422/485 interface card w/isolation protection
• PCL-846B: 4-port RS-422/485 interface card w/isolation and surge
protection
• PCL-849A: 4-port high-speed RS-232 interface card
• PCL-849B: 4-port high-speed RS-232 interface card w/ surge protec-
tion
• PCL-849+: 4-port high-speed RS-232 interface card w/ surge protec-
tion and 16C654 UART
• PCL-849L: 4-port RS-232 interface card
• PCL-858A: 8-port high-speed RS-232 interface card
• PCL-858B: 8-port high-speed RS-232 interface card w/surge protec-
tion