User guide

Installation 2-15
2
Check the COMM Port Parameters
Verify that the COMM port parameters on the Solo E1 DSU and terminal
or modem match. The defaults are:
¥ Baud rateÑ9600
¥ Parity bitÑnone
¥ Word lengthÑ8
¥ Stop bitsÑ2
To change the COMM port parameters on the Solo E1 DSU Standalone.
(Figure 2-3 on page 2-7)
Connect the Terminal to the COMM Port
To connect a terminal to the COMM port (Figure 2-5 on page 2-13):
3. Plug the male DE-9 connector into the Solo E1 DSU DE-9
COMM connector.
Use a 9-pin RS-232 straight cable.
4. Plug the opposite end of the cable into the terminal connector.
Connect a Modem
To change the Solo E1 DSU settings, refer to Figure 2-3 on page 2-7.
To connect a modem to the COMM port, see Figure 2-5 on page 2-13:
1. Match the baud rate, parity bit, word length and stop bit
settings for the Solo E1 DSU, both modems, and terminal.
If the settings are not the same, communication between the devices
will fail or display miscellaneous characters.
2. Connect the modem to the Solo E1 DSU C connector.
Use a DE-9 plug to the Solo E1 DSU, and a crossover (null modem)
cable/adapter to the modem.
NOTE: Cable length must not exceed 15.24 m (50 ft) with a direct
connection set at 9600 baud.