Extron Electronics VN-Matrix 250 User Guide - Manual (Page 96)

RS-232 Pass-through Configuration
The Coms port on the rear panel of the encoder (see figure 6 , R on page 13), or decoder
(see figure 7 , R on page 13) is used for RS‑232 pass‑through communications, allowing
a control device connected to one VNM 250 unit (the server) to control remote devices
connected to other VNM 250 units (clients).
Serial data received by one VNM 250 unit is transmitted over the network, using
TCP/IP, and then converted back to serial data at the target VNM 250 unit. Data flow is fully
bi‑directional.
Units that are configured for this type of data flow are called pass‑through groups (see
RS-232 Pass-through on page 18).
Pass-through Coms Server Configuration
1. On the Device List page, click on the device you want to configure as the server.
2. Click the Peripherals tab. The page opens with the Serial Port Control panel on
the left hand side of the window:
1 1 2 2
Figure 72. Serial Port Control Panel
3. From the mode drop‑down list, select server (see figure 72, 1 ).
4. Change other settings, as required.
5. Click update (see figure 72, 2 ), followed by Save All at the top of the page.
Pass-through Coms Client Configuration
1. On the Device List tab, select the device you want to configure as a client.
2. Click the Peripherals tab (see figure 69).
3. From the mode drop‑down list, select client (see figure 73, 1 ). This reveals the
destination box (see figure 73, 3 ).
1 1 2 2
3 3
Figure 73. Serial Port Control Panel with Destination menu
4. From the destination drop‑down list, select passthrough for the appropriate server (see
figure 73, 3 ).
5. Change the other settings as required, then click update (see figure 73, 2 ).
6. Click Save All at the top of the page.
7. Repeat steps 1‑6 for other client devices.
VNM 250 • Configuration with the VNM 250 GUI 90