Safety guidelines, Safety guidelines -3 – Juniper Networks ERX-1410 User Manual
Page 67
Safety Guidelines
ERX Edge Routers
4-3
Figure 4-1 Cabling your ERX system
Safety Guidelines
Observe the following guidelines when cabling your ERX system.
Ground (Earth) Warning: Connect either the freestanding ERX system or the rack
to ground (earth), and ensure that a reliable grounding path is maintained in the
rack.
ALARMS
SRP I/O
EXTERNAL TIMING
CONSOLE
10/100
BASE T
RS-232
T1 120 OHM
CLOCK IN
A
B
T
G
R
T
G
R
E1 75 OHM
CLOCK IN
A
B
MINOR
MAJOR
CRITICAL
+
-
+
-
+
-
CT3
I/O
MULTI
MODE
OC3
I/O
CT1
I/O
CT3
I/O
CT3
I/O
THIS PRODUCT IS EQUIPPED WITH
TWO POWER FEEDS. DISCONNECT
BOTH FEEDS PRIOR TO SERVICE.
POWER A POWER B
POWER A
POWER B
-48VDC
-48VDC
RTN
RTN
-48VDC
RTN
-48VDC
RTN
WARNING!
NO OPERATOR ACCESSIBLE
COMPONENTS. AUTHORIZED
SERVICE PERSONNEL ONLY.
!
O
OFF
|
ON
O
OFF
|
ON
CT3
I/O
RX
TX
RX
TX
RX
TX
CT3 ports
10/100 BASE T port
RS-232 terminal port
Power input module
Power A and Power B
on/off switches
Power A and Power B
input connectors
Ground terminals
CT3 I/O module
(slot 5)
SRP I/O module
(slot positions 6 and 7)
Alarm leads
External timing ports (Europe)
External timing ports (North America)
CT1 I/O module
(slot 10)
OC3 I/O module
(slot 13)
RX
TX
RX
TX
OC3 ports
(MMF or SMF)
Ejector
Captive screw
CT1 ports
Blank faceplate
ERX-1400 rear view