Changing Communications Settings - Symmetricom SSU-2000e User Manual

Using the EIA-232 Serial Port DTE and DCE Switch
The serial port DTE and DCE switch is located on the right side of the serial ports A
and B on the front panel. Each port may be configured as either DCE (default,
connection to PC) or DTE (connection to modem). The upper position is labeled A
and the lower position is labeled B as shown in
Note: The DCE setting allows direct connection of the unit to a
standard PC communication port using a 1:1 cable. The DTE setting
requires a null modem cable. If connecting to a modem, use DTE.
Figure 2-4. Serial Port DTE/DCE Switch

Changing Communications Settings

The default EIA-232 settings for both serial ports (Port A, J4 and Port B, J5) are
9600 baud, no parity, 8 data bits, 1 stop bit, echo on, ASCII mode, and handshaking
disabled. To change these settings, perform the following steps.
1. Connect the serial communication cable from the DE-9 female connector on the
PC or laptop to the interface remote terminal PORT-A (J5).
2. Verify that the slide switch is set to the appropriate equipment type, either data
terminal equipment (DTE) or data communications equipment (DCE).
3. Connect a PC or laptop with terminal emulation software (such as Microsoft
HyperTerminal) or ASCII terminal to the port.
4. Log in to the SSU-2000e at user level 2 or higher.
5. Use the COMM command to change the communications settings for the port.
Refer to the SSU-2000e Technical Reference for a complete description of the
Transition Language One (TL1) command interface mode and the Interactive
Command Set (ICS) ASCII mode.
Making Ethernet Connections
The Ethernet 10-Base-T connection is a shielded RJ-45 receptacle, labeled
Ethernet 10baseT (J3) on the front panel. The RJ-45 is the standard 10-Base-T
connector. To attach the SSU-2000e to an Ethernet network, connect a standard
unshielded twisted pair (UTP) Ethernet RJ-45 cable to J3 on the front panel.
12713140-002-2 Revision E – October 2006
Chapter 2 Installing the SSU-2000e
Making Communications Connections
Figure 2-4.
SSU-2000e User's Guide 65