Understanding Carriers
27
MDW 9031/9031DCP Wireless Pocket Phone Installation and Use
503-801-166 — Issue 3 — October 1999
2
Installing the MDW 9031/9031DCP
Pocket Phone
Understanding Your Model 117A4 Carrier
The Model 117A4 carrier differs from the 117A3 in that it does not require that Slot 6 contain a radio module in
order to pass the signal from the control carrier to the next carrier. It also does not have Power and
Control/Expansion DIP switches to set. The 117A4 automatically adjusts its power level and senses whether it is
being used as a control or an expansion carrier.
As the following illustration shows, the 117A4 does have an additional LED located on the right side of the
carrier, the CONTROL/EXPANSION LED; this is used to determine whether the cabling was installed
correctly.
1
2
3
4
6
TRANSTALK
5
MNN
OEA
PTR
HAN
HAP
TER
GR
REP
RAC
ITE-
OK
LOR
EMIP
SUM
REP
RAC
ITE-
OK
REP
RAC
ITE-
OK
XER
TFA
MRU
KLA
RIEN
LO
REP
RAC
ITE-O
K
LOR
EMIP
SUM
XER
TFA
MRU
KLA
RIEN
LO
Rear
Exit Slots
Wall Mount
Hole
Slot
Numbers
SYNC and CONTROL/EXP
LED Codes Label
CONTROL/EXPANSION LED
(Model 117A4 Only)
OUT Jack
IN Jack
Cable
Manager Slot
Wall Mount
Hole
Slot
Numbers
Card Edge
Connectors
Power Cord
Connector
(not shown)
Wall Mount
Hole
Radio
Module
Mounting
Rods
Radio
Module
Mounting
Rods
Label with
Model Number
(not shown)
Wall Mount
Hole
CAU
TION
USE
ONL
Y
AT&
T CA
BLE
P⁄N
8476
6789
6
IN
OUT
OUT O
F SY
NC
CON
TRO
L/
EXPA
NSIO
N