Hirschmann RS20 User Manual

MACH 100
Release 07/09
33
 USB interface
The USB socket has an interface for the local connection of an AutoCon-
figuration Adapter (part number ACA 21-USB see on page 38 „Accesso-
ries“). It is used for saving/loading the configuration and for loading the
software.
 V.24 interface (external management)
A serial interface is provided on the RJ11 socket (V.24 interface) for the
local connection of an external management station (VT100 terminal or
PC with appropriate terminal emulation) or an AutoConfiguration Adapter
ACA 11. This enables a connection to the Command Line Interface (CLI)
and the system monitor to be made.
The socket housing is electrically connected to the front panel of the de-
vice. The V24 interface is not electrically isolated from the supply voltage.
Figure 22: Pin assignment of the V24 interface
Figure Pin Function
1 VCC (VBus)
2 - Data
3 + Data
4 Ground (GND)
Table 3: Pin assignment of the USB interface
VT 100 terminal settings
Speed 9,600 Baud
Data 8 bit
Stopbit 1 bit
Handshake off
Parity none
1 2 43
Pin 1
Pin 1
Pin 8
Pin 5
Pin 6
RJ11 DB9
2
3
5
1
2
3
4
5
6
CTS
n.c.
TX
GND
RX
RTS

Hirschmann RS20 Specifications

General

Mounting	DIN Rail
Operating Temperature	-40°C to +70°C
Protection Class	IP30
Switching Technology	Store-and-Forward
Product Type	Industrial Ethernet Switch
Port Details	10/100 Mbps Ethernet ports
Switching Capacity	3.2 Gbps
MAC Address Table	8k
Management	Web, SNMP
Redundancy	MRP
Ports	8 or 16