Pelco Kbd300 - Manual (Page 7)

Pelco Manual C527M (11/97) 5
3.1 WALL JACK WIRING
1. Determine the location of all keyboards.
2. Run wall jack interconnect cable (user supplied) from the SCU to the closest
keyboard location. Then to the next nearest location, and the next, etc.
Wall jacks must be within 6 feet (1.8 m) of the nearest suitable electrical outlet.
Do not mount the wall jack at this time.
3. Make cable connections between wall jacks according to Figure 2. All connec-
tions between keyboard wall jacks are one-to-one. Notice that Pin 5 is con-
nected to Pin 4 between SCU wall jack and the first keyboard wall jack.
4. At each keyboard wall jack, wire a transformer to pins 5 and 6. Polarity is
unimportant.
5. Secure the wall jack to a suitable surface.
6. Plug keyboard transformers into a suitable 115 VAC outlet.
7. Plug in all Data Cables according to Figure 3.
IMPORTANT: Wall jacks must be
wired in a daisy-chain configura-
tion.
Figure 2. Wall Jack Wiring Schematic
SCU WALL
JACK
PIN
1
2
3
4
5
6
7
8
FIRST KBD
WALL JACK
PIN
1
2
3
4
5
6
7
8
SECOND KBD
WALL JACK*
PIN
1
2
3
4
5
6
7
8
THIRD KBD
WALL JACK*
PIN
1
2
3
4
5
6
7
8
12 VAC
WALL
TRANSFORMER
12 VAC
WALL
TRANSFORMER
12 VAC
WALL
TRANSFORMER
1
2
3
4 5
6
7
8
WALL JACK
PIN ASSIGNMENTS
* AS NEEDED
USER
SUPPLIED
CABLE