Kramer Electronics VS-4228 - Manual (Page 15)

12 VS-4228 - Connecting the VS-4228
4.3.1 Cascading Via the RS-232 Control Interface
Connect the PC to units as described in Section 4.1 and shown in Figure 8 .
Use a straight cable and connect pins 2 to 2, 3 to 3 and 5 to 5.
Figure 8: Cascading Units via the RS-232 Control Interface
4.3.2 Cascading Via the RS-485 Control Interface
To connect an RS-485 connector on one VS-4228 unit to an RS-485 connector on
another unit:
1. Connect the “+” PIN on the first VS-4228 unit to the “+” PIN on the second
VS-4228 unit
2. Connect the “-” PIN on the first VS-4228 unit to the “-” PIN on the second
VS-4228 unit