Patton electronic 1070RC User Manual
Page 15
Switching the Power Supply On and Off
The power supply on/off switch is located on the front panel. When
plugged in and switched on, a red front panel LED will glow. Since the
Model 1000R16 is a "hot swappable" rack,
it is not necessary for any
cards to be installed before switching on the power supply. The power
supply may be switched off at any time without harming the installed
cards.
NOTE: Please refer to the Model 1000RP Series User Manual
AC
and DC Rack Mount Power Supplies for fuse and power card
replacement information.
4.2 INSTALLING THE MODEL 1070RC INTO THE CHASSIS
The Model 1070RC is comprised of a front "brains" half card and a
rear "connections" card. The two cards meet inside the rack chassis
and plug into each other by way of mating 50 pin card edge connectors.
Use the following steps as a guideline for installing each Model 1070RC
into the Model 1000R16 rack chassis:
1. Slide the rear "connections" card into the back of the
chassis along the metal rails provided.
2. Secure the rear card using the metal screws provided.
3. Slide the "brains" card into the front of the chassis. It should
meet the rear card when it's almost all the way into the
chassis.
4. Push the front card
gently into the card-edge receptacle of
the rear card. It should "click" into place.
5. Secure the front card using the spring loaded thumb screws.
Note: Since the Model 1000R16 chassis allows "hot swapping" of
cards, it is
not necessary to power down the rack when you install or
remove a Model 1070RC.
4.3 RS-232 CONNECTION
The RS-232 port is always the
lower port on the rear interface card.
The DB-25 is pinned according to the RS-232C/V.24 interface standard.
The 10-pin RJ-45 is pinned according Patton's Modified Modular
Interface Standard (based on the EIA/TIA-561Standard). For specific
interface pin-outs, please refer to the diagrams in Appendix D.
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The Model 1070RC is wired as a DCE (Data Communications
Equipment). Therefore, it wants to connect to a DTE (Data Termination
Equipment). If your RS-232 output device is a DTE, use a
straight
though cable to connect to the Model 1070RC. If your RS-232 output
device is DCE, call Patton Technical Support at 301-975-1007 for
specific installation instructions.
4.4 TWISTED PAIR CONNECTION
The Model 1070RC operates full duplex over two twisted pair.
In
all applications, the twisted pair wire must be 26 AWG or thicker,
unconditioned, dry metallic wire. Both shielded and unshielded wire
yield favorable results. Note: The Model 1070RC can only
communicate in a closed data circuit with another Model 1070RC. Dial-
up analog circuits, such as those used with a standard Hayes-type
modem, are
not acceptable. For further information about acceptable
wire grades, please refer to the diagrams in Appendix B.
4.4.1 Point-to-Point Twisted Pair Connection
The 6-position RJ-11 and 8-position RJ-45 jack options for the
Model 1070RC (always the
upper jack on the rear interface card) are
prewired for a standard TELCO wiring environment. Connection of a 4-
wire twisted pair circuit between two or more Model 1070RCs requires
a
crossed over cable as shown in the figures below and on the
following page.
RJ-11
SIGNAL
PIN#
COLOR
COLOR PIN#
SIGNAL
GND
1
Blue ..................White
6
GND
RCV-*
2
Yellow...............Red
4
XMT-
XMT+
3
Green ...............Black
5
RCV+
XMT-
4
Red ..................Yellow
2
RCV-
RCV+
5
Black ................Green
3
XMT+
GND
6
White ................Blue
1
GND
Notice!
Any terminal cable connected to the Model
1070RC must be shielded cable, and the outer shield must
be 360 degree bonded–at both ends–to a metal or
metalized backshell.