4A100K10872
4 Installation Description
4.1 General Installation Instructions
The installation cable enters the VSP-512 from the bottom through the K-M20 or K-M12 cable
glands.
This installation cable, coming from the buffer unit in the safe area, terminates inside the station on
the X1 terminal list.
VSP-512 is for wall mounting, and can be installed inside –Ex II 1 G (Zone 0)
The buffer unit VSP5012 and VSP-5004/008 are built into a steel cabinet.
The buffer is for wall mounting and must be located outside the hazardous area - in SAFE area.
The cables to and from the safe area part of the system are connected to the grey terminal plug
located on PC-board PCB-VSP-5012 Plugs P1 to P4.
The cables to and from the VSP-512 located in the hazardous area must be connected to blue
terminal list X10.
See drawings: VSP-5012_sl, VSP-5012_cc1, VSP-5012_cc2, VSP-5012_lo, and VSP-EX_sd
All installations in the hazardous area must be according to the EN 60079-14:2013 standard.
4.2 Startup Procedure
-Complete all wirings as shown in included example drawings VSP-5012_cc1 and
VSP-5012_cc2 or project drawings.
-Power up the system with 24Vdc and check that all PWR lamps on IM1-22Ex-R2ch relays
in buffer unit are lit.
-The 24V DC signal output must be wired to the correct extensions. Strap the relay circuits
on connector P4 (pin 1 to 4) to the actual extension on P3 (pin 1 to 16).
This is usually factory-set according to your specification.
-Test a call from the safe area VSP station to one of the VSP main stations. Check the
sound quality. If the extension is connected to one of the relay outputs, check that there is
24Vdc on terminals P4 (pins 5 to 12) and that the signal unit is working.
-Test a call from one of the VSP-512 stations to the safe area VSP stations. Check the
sound quality.
-If the sound quality is bad, then check whether the wiring is correct, and the shield is
isolated and grounded in terminal 2 on VSP-211-L only.
5 Service & Maintenance
5.1 General
All maintenance and service must be performed by competent personnel with sufficient Ex
knowledge. These persons must take sole responsibility that the system conforms to the required
standards.
Spare parts are listed in the included spare part lists, and must be purchased or approved by
Zenitel.
