Measurement Computing DaqBook 2000 Series - Manual (Page 32)

Rear Panel
The DaqBook/2020 rear panel contains P1 and P2 DB37 connectors, a MAC Address Label, DIN5 power
connector, power switch, 2 Synchronization Ports, Ethernet Port, and 5 LEDs [ 2 of which are on the
Ethernet connector].
DaqBook/2020, Rear Panel View
P1 - DB37 Connector: Analog input port for 14 single-ended analog inputs with 13 software
programmable ranges (±10 V to ±156 mV full scale). The Analog Input signals enter through P1 go through a
multiplexer (MUX) to PGA, to Gain & Offset Amplifier, then to Analog-to-Digital Converter (ADC).
P2 - DB37 Connector: General purpose digital I/O port with 24 lines, or digital I/O expansion port
controlling up to 192 external lines.
MAC Address Label: The Media Access Control (MAC) label is located near the Ethernet connector. The
label shows the device serial number in three formats: (1) Barcode, (2) base 10, and (3) hexadecimal. If
prompted to enter a serial number in software, use the base 10 number. Conversion to a hexadecimal
number for use in addressing will be automatic.
ETHERNET: The 10/100BaseT Ethernet port can connect to the Ethernet port of the host PC, or to an
Ethernet network. Either of two Ethernet patch cables may be used to make the connection. CA-242 is a
1.5 foot cable. CA-242-7 is a 7-foot cable. Note that the Ethernet connector has two built in LEDs that
indicate traffic flow. These are discussed with the three other Ethernet-related LEDs. Note that the
Ethernet cable length must be <10m in order for the system to be CE Compliant.
LEDs: There are 5 ETHERNET Status LEDS. Two rectangular LEDs, Tx and Rx
are built right into the frame of the Ethernet jack. The other three, located
just to the right of the jack, are round and are labeled L, T, and D.
Tx – “ON” indicates traffic is being transmitted (see figure at right).
Rx – “ON” indicates that the port is receiving traffic.
L (Link) “ON” indicates a link exists. “OFF” indicates no link.
T (Transmit) “ON” indicates 100 M-Bits, “OFF” indicates 10 M-Bits.
D (Duplex) “ON” indicates full duplex, which allows simultaneous two-way data
traffic. “OFF” indicates half-duplex, which only allows one-way data
traffic at any given time.
Tx and Rx LEDs
SYNC (Qty of 2) – Two “synchronization ports” provide a means of synchronizing up to four
DaqBook/2000 Series units in regard to post-trigger scanning. The ports accept CA-74-1 and
CA-74-5 RJ-11, 6-conductor type cables. Total combined cable length is not to exceed 15 feet (4.57 m).
POWER Switch: A rocker-type switch with a “0” label for Power Off, and a “1” for Power On.
POWER IN: +10 to +30 VDC, through a socket type DIN5 connector on the chassis. Power is typically
supplied from a TR40U power adapter.
4-2 Connectors, Indicators, Cables, & Pinouts 898095 DaqBook/2000 Series and DaqOEM/2000 Series