
Pub. 42003-274B
Ring Detect Relay Kit
Page 2 of 6
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Installation
Model 354-001
Use the parts in the Model 12565-009 Ring Detect Relay Kit:
1.
Remove the four 10-32 security screws from the front cover of the telephone. Pull the cover away
from the back box/enclosure. Retain the screws.
2.
Disconnect the incoming telephone line; red (ring) and green (tip) from terminal block
TB1
, of the
industrial telephone PCBA.
3.
Install two (provided) 6-32 × 1.0-inch F/F standoffs onto the weld studs on the back of the front panel
(see Figure 1).
4.
Align the ring relay PCBA with the two standoffs.
Note the orientation of the ring relay PCBA (see Figure 1).
5.
Secure using two #6-32 screws provided.
6.
Connect the incoming telephone line to terminal block
TB1
, on the ring relay PCBA (see Figure 2).
7.
Connect the external sounder or beacon to terminal block
TB2
, on the ring relay PCBA (see Figure 2
8.
Connect the
(provided) USOC
RJ11C modular
connector cord from
the industrial
telephone PCBA (see
Figure 4) to the ring
relay PCBA (see
Figure 2).
9.
Place the front cover
onto the back
box/enclosure. Secure
the front cover to the
back box/enclosure
using the four 10-32
security screws,
retained in step one.
Figure 1. Model 354-001 Front Panel Interior