Specifications

CR3000 Overview
OV1.2 Communication and Data Storage
OV1.2.1 Peripheral Port
The peripheral port is for attaching data storage or communication peripherals.
Both the CFM100 and NL115 modules plug onto the peripheral port and have
a slot for a Type I or Type II CompactFlash
®
card (Section 2.1.2). The NL115
also supports Ethernet communications.
Removing a card from the CFM100 or NL115 while the
card is active can cause garbled data and can actually
damage the card. Always press the button to disable the
card for removal before switching off the CR3000 power.
CAUTION
OV1.2.2 CS I/O
All Campbell Scientific communication peripherals connect to the CR3000
through the 9-pin subminiature D-type socket connector located on the front of
the Wiring Panel labeled “CS I/O” (Figure OV1-3). Table OV1-1 gives a brief
description of each pin.
TABLE OV1-1. Pin Description
ABR = Abbreviation for the function name.
PIN = Pin number.
O = Signal Out of the CR3000 to a peripheral.
I = Signal Into the CR3000 from a peripheral.
PIN ABR I/O Description
1 5 V O 5V: Sources 5 VDC, used to power peripherals.
2 SG Signal Ground: Provides a power return for pin 1
(5V), and is used as a reference for voltage levels.
3 RING I Ring: Raised by a peripheral to put the CR3000 in
the telecommunications mode.
4 RXD I Receive Data: Serial data transmitted by a peripheral
are received on pin 4.
5 ME O Modem Enable: Raised when the CR3000
determines that a modem raised the ring line.
6 SDE O Synchronous Device Enable: Used to address
Synchronous Devices (SDs), and can be used as an
enable line for printers.
7 CLK/HS I/O Clock/Handshake: Used with the SDE and TXD
lines to address and transfer data to SDs. When not
used as a clock, pin 7 can be used as a handshake
line (during printer output, high enables, low
disables).
8 +12 VDC
9 TXD O Transmit Data: Serial data are transmitted from the
CR10X to peripherals on pin 9; logic low marking
(0V) logic high spacing (5V) standard asynchronous
ASCII, 8 data bits, no parity, 1 start bit, 1 stop bit,
300, 1200, 2400, 4800, 9600, 19,200, 38,400,
115,200 baud (user selectable).
OV-5