Model 5010 Time Code Master Manual
SERIAL REMOTE CONTROL PROTOCOL
Revision 3.1.1
Page 5-1
5.
SERIAL REMOTE CONTROL PROTOCOL
5.1. OVERVIEW
•
Four wire communications channel utilized - RS-422 levels. Alternate 2 wire interface using RS-
232C levels
•
Data transmitted asynchronously, bit serial, word serial with data exchange between the devices
being digital.
•
Transmission rate is selectable 38.4 K, 19.2K, 9600 Baud supported
•
Data words utilized by the interface shall be as follows:
1 START bit + 8 DATA bits +1 PARITY bit + 1 STOP bit.
The parity bit shall denote EVEN parity
5.1.1. Connector Pin Assignment
The serial port on the 5010 is configured at the factory for RS-232 communications. The serial port can
also be used with RS-422 communications by configuring internal jumpers as shown in Figure 6-7 for
the older style 5010s or Figure 6-8 for the newer style 5010s. The pin assignment for the serial port
when configured for RS-232 is shown in Table 5-1 and the pinout for the RS-422 is shown in Table 5-2.
Pin #
Name
Description
1 GND
Chassis
ground
2
TxD
RS-232 Transmit Output
3
RxD
RS-232 Receive Input
4
5
Sig Gnd
RS-232 Signal Ground
6
7
RTS
RS-232 RTS Input
8
CTS
RS-232 CTS Output
9
Table 5-1: Serial Control RS-232 Pin Definitions
Pin #
Name
Description
1 GND
Chassis
ground
2
Tx -
RS-422 Transmit - Output
3
Rx+
RS-422 R Input
4 GND
Ground
5
No
connection
6 GND
Ground
7
Tx +
RS-422 Tr Output
8
Rx -
RS-422 Receive - Input
9 GND
Chassis
Ground
Table 5-2: Serial Control RS-422 Pin Definitions