Rohde & Schwarz TS7124AS, Instruction Handbook Manual

Page: 36 / 69

Installation and Commissioning
R&S
®
TS7124AS
36 Instructions Handbook 1179.2948.02 ─ 01
Use a straight-through cable for the RS-232 connection to the control computer
Two types of devices compatible with RS-232 interfaces must be distinguished:
●
A "DTE" is a Data Terminal Equipment , for example a built-in serial port in a PC
●
A "DCE" is a Data Communications Equipment , for example the chamber's remote
control interface
Connecting two DTE devices requires a cable with crossed wires between the TXD-
RXD and RTS-CTS pins. On the contrary, connecting the remote control interface
(DCE) of your chamber to a control computer (DTE) requires a
straight-through
cable .
Prerequisites for power connection
Familiarize yourself with residual risks and potentially dangerous situations.
See Chapter 2.2, "Residual Risks" , on page 10 and Chapter 2.3, "Potentially Danger-
ous Situations" , on page 11.
We recommend installing a panic button . It is a power-off switch that ensures quick
deactivation of the chamber if an emergency occurs. A panic button is not included in
delivery. The picture shows an example.
Make sure that:
●
The panic button is installed in a place that the operator can reach easily.
●
Every operator knows where the panic button is located.
●
Hitting the panic button interrupts the AC power supply to the chamber. Meaning
the mains grid power socket where the power supply unit is connected is discon-
nected from power.
To prepare the power connection
1. Connect the grounding terminal (earth ground contact ) to earth in the operating
site, to avoid electrostatic charging of the chamber's body.
2. Assemble the external power supply unit (order no. 1525.8706.02) with the socket
adapter that fits for your regional power socket type.
3. If you use the Push-Button Switch Unit , place it in a position that prevents collision
with the opening door.
4. Connect the power supply unit to your mains grid power socket.
Use only the 24 V DC power supply unit included in the delivery.
For EMC reasons, limit the DC cable length to a maximum of 3 m.
Make sure that the grid power socket is disconnected from mains grid power when
you hit the panic button, see
"Prerequisites for power connection" on page 36.
Connecting to Control and Power