Juniper MX104 - MX104 BITS Port Specifications; Cable Specifications; Port Pinouts; Figure 23: RJ-48 Connector for MX104 BITS Ports

MX104 BITS Port Specifications
The external Building-Integrated Timing Supply (BITS) clock interface port labeled EXT
REF CLK IN on the front panel of the router allows you to connect external clock signal
sources.
Two LEDs indicate link status on the port and function in the same way as the T1/E1 ports.
The clocking information is extracted from the input, but the data is discarded.
•
Cable Specifications on page 89
•
Port Pinouts on page 89
Cable Specifications
Table 62 on page 89 lists the specifications for the cables that connect to the EXT REF
CLK IN port.
NOTE: The plastic connector at the end of the RJ-48 cable is physically
identical to an RJ-45 connector (see Figure 23 on page 89). You must ensure
that the cable pinouts match the pinouts described in Table 63 on page 89.
Figure 23: RJ-48 Connector for MX104 BITS Ports
Table 62: MX104 BITS Port Cable Specifications
ValueSpecification
RJ-48 shielded cableCable
Autosensing RJ-48 connectorRouter receptacle
Port Pinouts
Table 63 on page 89 provides the pinout information for the RJ-48 connector for the
external clocking input port.
Table 63: BITS Port Pinouts
DirectionDescriptionPin
InputEXT_CLKA_RRING_LINE1
InputEXT_CLKA_RTIP_LINE2
89Copyright © 2017, Juniper Networks, Inc.
Chapter 9: Port Cable and Pinout Specifications