Mounting and Installation
6NH7811-0AA22 © Siemens AG 2002 All Rights Reserved
2-10 MD2 Modem (07/2002)
· 10-pin DIL switch
- Operating mode
- Character recognition
- Control signal set to RTS
- Squelch ON or OFF
- Reset test receive
The following illustration is a summary of the possible settings.
Fig. 2-4 Various settings for the DIL switches accessible from above
The following sections provide more information for individually configuring these
default settings.
OFF
ON
12345
1
Channel 1 (2-wire)
4-wire mode
Send level -6 dB
Control signal = RTS
Squelch OFF
(not used)
Reset Test receive
Squelch ON
reserved
Operating mode 1 2 3 4
Normal OFF OFF OFF OFF
Normal with
DTR/RTS on
OFF OFF OFF ON
Repeater OFF OFF ON OFF
With RS485
interface
OFF OFF ON ON
Signal refresh off OFF ON OFF ON
Test f
H constant
ON OFF OFF ON
Test send RS485 ON OFF ON OFF
Test send ON OFF ON ON
Test receive ON ON OFF OFF
Test f
baud
ON ON OFF ON
Test f
L
ON ON ON OFF
Test f
H
ON ON ON ON
Character recognition 5 6 7
Asynchronous 11 bit OFF OFF OFF
Asynchronous 10 bit OFF OFF ON
M I D off
Idle state: 0
OFF ON OFF
M I D off
Idle state: 1
OFF ON ON
M I D on,
Interval > 12 bit
Idle state: 0
ON OFF OFF
M I D on,
Interval > 12 bit
Idle state: 1
ON OFF ON
M I D on,
Interval > 24 bit
Idle state: 0
ON ON OFF
M I D on,
Interval > 24 bit
Idle state: 1
ON ON ON
M I D: Message interval detection