Omron HOME SECURITY SYSTEM - MOTION SENSOR FQM1-MMA21 - Manual (Page 89)

66
Wiring Section 3-2
Connection Example to Programmable Terminal (PT)
Direct Connection from RS-232C to RS-232C
• Communications Mode: NT Link (1:N, N = 1 node only)
• OMRON Cables with Connectors: XW2Z200T (2 m)
XW2Z500T (5 m)
RS-232C Port Specifications
Note Baud rates for the RS-232C are specified only up to 19.2 kbps. The FQM1
supports serial communications from 38.4 kbps to 57.6 kbps, but some com-
puters cannot support these speeds. Lower the baud rate if necessary.
RS-232C
PT
1:N NT Link
RS-232C port
PT
Shell
1
2
3
4
5
6
7
8
9
FG
–
SD
RD
RS
CS
5V
–
–
SG
Coordinator Unit
Shell
1
2
3
4
5
6
7
8
9
FG
FG
SD
RD
RS
CS
5V
DR
ER
SG
RS-232C
interface
Signal Signal
RS-232C
interface
9-pin D-sub
(male) 9-pin D-sub
(male)
Pin
No. Pin
No.
Item Specification
Communications method Half duplex
Synchronization Asynchronous
Baud rate 0.3, 0.6, 1.2, 2.4, 4.8, 9.6, 19.2, 38.4, or 57.6 kbps
(See note.)
Transmission distance 15 m max.
Interface EIA RS-232C
Protocol Host Link, 1:N NT Link, No-protocol, or Peripheral Bus
(Toolbus)