Psion Teklogix 8515 User Manual

Using AC power, the 8515 Vehicle-Mount Computer can be mounted at fixed locations ad-
jacent to cross-dock doors, manufacturing stations, or in offices. The 110/220V Psion Tek-
logix AC adaptor Model PS1400 should be used to power the computer from an AC source. 

A 1.8 meter (6 ft.) extension power cable (P/N 13985-302 or P/N 13985-301 with screen-
blanking sensor) is supplied with your 8515 (see 

). This cable 

should be wired to a filtered, fused (maximum 6A) accessory supply on the vehicle. The 
8515 draws no more than 6A (less if the accessory supply is greater than 12V). Any addi-
tional wiring (minimum 18 gauge), connectors or disconnects used should be rated for at 
least 90 VDC, 10A.
The red lead of the power cable attaches to the positive vehicle supply. The black lead con-
nects to the negative supply—this should be connected to a proper terminal block and not to 
the vehicle body. The 8515 is fully isolated and can be used with both negative and positive 
chassis vehicles.
You may have the option of connecting power before or after the ‘key’ switch. It is prefera-
ble to wire the 8515 after the key switch—that is, the 8515 cannot be switched on without 
turning the vehicle key on. 
If an unfused power source must be used, a fuse assembly (P/N 19440-300) must be added 
to the extension power cable (the fuse and instructions are supplied with the cable). Use only 
a 6A slow blow UL approved fuse in the fuse assembly. The fuse assembly must be located 
as close as practical to the DC supply, and shall connect to the positive side of the 
DC supply.

The power pre-regulator should be used on all vehicles that run off voltages from 10V to 
30VDC. This helps to eliminate power irregularities that may affect the computer’s operat-
ing system.