4
Krell SACD Standard Developer’s Reference
Connecting to the RS-232 Port
A 9-pin RS-232 port is located on the right-hand side of the SACD
Standard back panel. Make sure the clamping screws (or thumb-
screws) securely fasten the connection cable from the external
computer-based device to the RS-232 port on the SACD
Standard.
Refer to the operating manual of your external computer-based
device for instructions on connecting to the SACD Standard.
To wire the male connector, follow these steps:
1. Locate the pin numbers on the male connector plug
(not shown).
2. Locate the pinout numbers on the female connector.
(See Pinout Signal list below).
3. Wire the male connector, matching the pin numbers on
the connector plug to the pinout numbers on the female
connector. Only three signals are necessary: 2=Received
Data, 3=Transmitted Data, and 5=Signal Ground.
The SACD Standard RS-232 connection port is set to the follow-
ing protocols:
9600 Baud
8 Data Bits
1 Stop Bit
No Parity
RS-232 Port Protocols
Pinout Signal
1
Data Carrier Detect
2
Received Data
3
Transmitted Data
4
Data Terminal
Ready
5
Signal Ground
6
Data Set Ready
7
Request to Send
8
Clear to Send
9
Ring Indicator
5 4 3 2 1
9 8 7 6
RS-232 PORT
FEMALE CONNECTOR
Located on the back panel
of the SACD Standard
WIRING THE MALE
RS-232 PORT
CONNECTOR
