Manual

IN-E-HL-NT-V2_12
Rotronic AG
Bassersdorf, Switzerland
Document code
Unit
HygroLog HL-NT data logger:
instruction manual
Instruction Manual
Document Type
Page
19 of 48
Document title
© 2009-2012; Rotronic AG IN-E-HL-NT-V2_12
o HL-DS-PT4: receptacle for AC adapter, one RJ45 connector (Ethernet), one RS485 port
(multi-drop networking), two connectors for RTD probe (direct 4-wire connection), one
connector for up to two logical input signals.
3.1.5 Docking stations with wireless Ethernet interface
Note: with any of the following models, use an extension cable to separate all probes from either
the HygroLog HL-NT or docking station so as to avoid measurement errors due to self-heating by
the docking station.
o HL-DS-NT4-WL: receptacle for AC adapter, WLAN transceiver, one RS485 port (multi-
drop) and one connector for up to two logical input signals.
o HL-DS-U4-WL: receptacle for AC adapter, WLAN transceiver, one RS485 port (multi-
drop), two probe inputs (HygroClip 2 or analog probe with voltage output signal), one
connector for up to two logical input signals.
o HL-DS-U4-WEB-WL: same as HL-DS-U4-WL but with an internal web server that can be
accessed with a web browser.
o HL-DS-PT4-WL: receptacle for AC adapter, WLAN transceiver, one RS485 port (multi-
drop networking), two connectors for RTD probe (direct 4-wire connection), one
connector for up to two logical input signals.
Network Interface – Wireless LAN
Standard
IEEE 802.11b
Frequency
2.4 GHz
Data Rate
Up to 11 Mbps with automatic fallback
Modulation
CCK (11/5.5 Mbps), DQPSK (2 Mbps), DBPSK (1 Mbps)
Typical Transmit Power
16 dBm
Receive Sensitivity
-52 dBm @ 11 Mbps
Connector
1 x RP-5MA
WLAN Security
WEP (Wired Equivalent Privacy)
64 / 128-bit encryption (RCA)
WPA / WPA2 / 802.11i
128-bit TKIP/CCMP
A
(AES) encryption
Enterprise mode (802.1X); LEAP (WEP only), PEAP,
TTLS, TLS; EAP-FAST, GTC, MD5, OTP, PAP, CHAP,
MSCHAP, MSCHAP
V2
, TTLS-MSCHAP
V2
Pre-shared key mode (PSK/Personal)
Note: The WLAN security of docking station HL-DS-U4-WEB-WL (with internal web browser) is
limited to WEP with 64-bit encryption (no WPA).