SAMSUNG
DCS-816
Installation Manual
5-2
5.2 Loop-Start Lines (Figure 5-1)
The DCS-816 system requires MDF connection for analogue trunk (loop-start) lines. The basic
KSU itself is equipped with two analogue trunk lines. Additionally, a 4TRK or an 8TRK card can be
installed in the trunk expansion slot. All connections for loop-start lines can be done through the
champ connector on the base board. See Figure 2-3 and refer to section 2.5 (MDF Cabling).
Use one pair twisted wires and connect each loop-start C.O. line to the trunk port you choose via
the Champ connector on the base board.
FIGURE 5-1
CHAMP CONNECTION
PIN COLOUR
CIRCUITS / FUNCTIONS
26/ 1 W-BL/ BL-W
T/R, 1
st
Trunk on base board
27/ 2 W-O/ O-W
T/R, 2
nd
Trunk on base board
28/ 3 W-GR/ GR-W
T/R, 1
st
Trunk on 4/8TRK
29/ 4 W-BR/ BR-W
T/R, 2
nd
Trunk on 4/8TRK
30/ 5 W-S/ S-W
T/R, 3
rd
Trunk on 4/8TRK
31/ 6 R-BL/ BL-R
T/R, 4
th
Trunk on 4/8TRK
32/ 7 R-O/ O-R
T/R, 5
th
Trunk on 8TRK
33/ 8 R-GR/ GR-R
T/R, 6
th
Trunk on 8TRK
34/ 9 R-BR/ BR-R
T/R, 7
th
Trunk on 8TRK
35/10 R-S/ S-R
T/R, 8
th
Trunk on 8TRK
25 PAIR CABLE WITH FEMALE CONNECTOR TO THE BASE CHAMP CONNECTOR
PSTN (C.O.)
Loop-Start
Lines
NO POLARITY
2 LOOP-START LINES TO THE BASIC KSU.
THESE LINES WILL BE TRANSFERRED TO STN
15 AND STN 16 IN CASE OF POWER FAILURE
4 OR 8 ADDITIONAL LOOP-START LINES IF A
4TRK OR AN 8TRK CARD IS INSTALLED
CONNECTING LOOP-START LINES
