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, the power LED will glow. Since the
Model 1000R16 is “hot swappable”,
you do not need to turn off the
power before removing rack cards. 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 1012ARC INTO THE CHASSIS
The Model 1012ARC is comprised of a front card and a rear card.
The two cards meet inside the rack chassis and plug into each other
via mating 50 pin card edge connectors. Use the following steps to
install each Model 1012ARC into the Model 1000R16 rack chassis:
1. Slide the rear card into the back of the chassis along the metal
rails.
2. Secure the rear card using the metal screws provided.
3. Slide the card into the front of the chassis. It should meet the rear
card when it is almost in 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 thumb screws.
NOTE: Since the Model 1000R16 chassis allows “hot swapping” of
cards, it is
not necessary to turn the power off when you install or
remove a Model 1012ARC.
4.3 TERMINAL INTERFACE CONNECTION
The RS-232 ports are always the
lower ports on the interface card.
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.
The Model 1012ARC is wired as a DCE (Data Circuit-Terminating
Equipment). Therefore, it wants to connect to a DTE (Data Termination
Equipment). If your RS-232 output device is a DTE, you may need to
use a special cable (such as a DB-25 to modular cable). If your
RS-232 output device is DCE, call Technical Support at
(301) 975-1007 for specific installation instructions.
9
4.4 TWISTED PAIR CONNECTION
The Model 1012ARC operates 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 1012ARC can only
communicate in a closed data circuit with another Model 1012ARC.
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 1012ARC (always the
upper jack on the rear interface card) are
pre-wired for a standard TELCO wiring environment. Connection of a
4-wire twisted pair circuit between two or more Model 1012ARCs
requires a
crossover cable as shown in the following charts.
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
†
RJ-45
SIGNAL
PIN#
COLOR
‡
COLOR
PIN#
SIGNAL
GND
†
2
Orange.............Brown
7
GND
†
RCV-
3
Black ................Green
5
XMT-
XMT+
4
Red ..................Yellow
6
RCV+
XMT-
5
Green...............Black
3
RCV-
RCV+
6
Yellow ..............Red
4
XMT+
GND
†
7
Brown ..............Orange
2
GND
†
†
Connection to ground is optional
‡
Standard color codes—yours may be different
10
