Pub. 42004-338K
Rugged Analog Auto-Dial Telephones
Page 11 of 21
P:\Standard IOMs - Current Release\42004 Instr. Manuals\42004-338K.docx
10/19
Figure 12. Model 277-001 Back Box Mounting Detail
Surface-Mount Installation using a 236-00x Series or Model 238-001 Enclosure
N
OTE
:
The back box included with the Model 277-001 Telephone is not required for use with a Model
236 Series or Model 238-001 Surface-Mount Enclosure and must be removed.
1.
Drill or punch conduit entries. (The Model 238-001 already includes a rear-access hole with gasket.)
WARNING
—
To prevent accidentally damaging equipment, drill all holes before
mounting the telephone.
2.
Outdoor Installations:
Install a (customer-supplied) telephone line suppressor on the telephone line.
3.
Connect the telephone’s modular plug to the incoming subscriber line or the telephone line suppressor
(if applicable) using the appropriate mating connector.
4.
Attach the telephone’s front panel to the mounting flanges of the Model 236 Series or 238-001
Surface-Mount Enclosure using the six supplied #10-32 security screws and six black flat washers.
A Model 233-001 Security Screwdriver (sold separately) is required to install the security screws.
5.
Torque the cover screws to 10–12 in
⋅
lb.