Juniper E Series Hardware Manual page 77

Use shielded cables to connect the external clock sources to the clock
NOTE:
source input ports.
Figure 29: ERX-14xx model SRP I/O module
26-AWG wire
BNC (Europe)
Wire-wrap connectors
(North America, Japan)
DB-9
To connect the clock source input ports:
1. Depending on the connector type, complete one of the following tasks:
E1: Attach the BNC connector to Clock A's external timing port.
!
! T1: Wrap the tip wire on pin marked T of Clock A's external timing port, the
ground wire on G pin, and the ring wire on R pin.
Chapter 6: Cabling E-series Routers
+
MINOR
-
+
MAJOR
-
+
CRITICAL
-
E1 75 OHM
CLOCK IN
T
A G
R
T1 100 OHM
CLOCK IN
T
B G
R
10/100
BASE T
RS-232
Cabling the SRP I/O Module
! 59