Juniper CTP2000 Series, Hardware Manual

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Figure 17: Jumper Locations on the RTM
g015368
E&M
type
config
jumpers
Unused
dual
RJ-45
Figure 18: Jumper Positions for Signaling Types
Pin 1
Type I
Type II
Type V
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NOTE: Jumper JP17 must be in Position 1-2 (see Table 1 on page 16 ) if any ports are set for
Type II signaling. This jumper ties all signal battery (SB) signals to battery voltage (–48V).
Jumper JP26 is used to connect all signal grounds (SG) to the chassis ground. When jumper JP26 is in
Position 1-2, the signal ground is connected to the chassis ground. In Position 2-3, it is isolated from the
chassis ground.
Table 1: Jumper Positions for Configuring Port Signaling Type
Signaling Type V Signaling Type II Signaling Type I Jumper
Position 1-2 Position 2-3 Position 1-2 JP1 Port 0
16