Pub. 42004-787L2A
SP2 Zone 2/22 Weatherproof Handset/Speaker Amplifier Station
Page 5 of 21
\\dc1vc1fs05\GTCPRODDOCS_86H27G1-FS\Standard IOMs - Current Release\42004 Instr. Manuals\42004-787L2A.docx
10/17
Opening the Station
Complete the following steps to open the station:
1.
Remove the four screws from the front cover and turn it to the left so that the interior surfaces face
you.
2.
Keep the wiring and ribbon cables connected.
This configuration presents the easiest access for cable termination and station configuration.
Figure 3. SP2 Zone 2 Station—Interior View
Field Wiring and Configuration
The Zone 2/22 SP2 Station provides terminal blocks on the Termination PCBA located in the rear of the
enclosure for field wiring the power, speaker, and RTU connections. The Main PCBA, mounted to the
back of the front panel, contains the 600-ohm audio and Ethernet connections.
All unused openings must be sealed with proper fittings per local standards. All metric cable entry
devices and blanking elements shall be certified for Zone 2/22 applications with an IP66 rating suitable
for conditions of use and correctly installed. Use field wiring suitable for the ambient temperature.
N
OTE
:
Consult the National Electrical Code (NFPA 70), Canadian Standards Association (CSA 22.1),
and local codes for the specific requirements regarding your installation. Install all equipment
without modification and according to local and national codes. Class 2 circuit wiring must be
performed in accordance with NEC 725.55.
N
OTE
:
Shielded Ethernet cable or metallic conduit is required for installation.
Station Ground
The station enclosure must be connected to earth ground.
1.
Install a #6 ring lug on the ground conductor.
2.
Secure it to the ground terminal located in the upper right corner at the back of the rear enclosure (see
Figure 10).
