INSTALLATION-PERIPHERALS
SECTION lOO-816-207
MARCH1993
HESB (REAR VIEW)
VOLUME CONTROL
INTERNAL
WIRING:
TBI -VOICE I I I
JUMPER WIeES; , --) 6

IO-OI

TBI
TBl TB2 2 - 1 12345678910
2-10 4-5 I 3-3
A -A I I
HACU-120 MODULAR / VOICE DI
-’ -. .
117NAC TO CONNECTORS 12v ov
OOR PHONE
VlAY BE USED TB2
i
7
24 AWG
JACKETED
TWISTED
PAIR
FROM
DIGITAL
TELEPHONE
TO HESB
I”I”T
66 BLOCK
/
nc nll,n JACKETED
, L3-i-nln
1 CABLE , TWISTED PAIR
24 AWG
/-
BK Y
7
YLJKU, UK
I KCDU
r II 11 11 II IIi”‘lf

1 I

MODULAR
CORD STATION I HESCB5A

w

CABLE
NOTE:
See Section 100-816-206
for instructions to cut EXSP
and HHEU jumpers on the
digital telephone main PCB.
- R607
INSTALL HHEU CIRCUIT (V.3 or .4) or
HHEU2 CARD INTO BASE OF DKT PER
HHEU INSTALLATION INFORMATION
IN SECTION 100-816-206.
FIGURE 7-l 0
DK8 AND DK16 HESB/DIGITAL TELEPHONE WITH LOUD RINGING BELL WIRING
7-14