Vodavi Starplus 308ex Electronic Key System Installation Manual

							400.1 SITE PLAQIMNG 
- “_,._ 
The 308EX Electronic Key Telephone System, 
like 
mOSt electronic office equip.ment, should not be 
subjected to harsh environmental conditions. 
.To assure easy servicing and reliable operation, 
:I several factors must be considered when planning 
the system installation. Always consider the following 
BEFORE installing the KSU and wiring: 
The KSU is designed for wall-mounting only. 
The internal power supply operates on 1 17 VAC, 
60 Hz, single-phase electricity. A 3-wire 
(parallel blade with ground) receptacle must be 
: 
‘: 
El 
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I_ 
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W 
‘:. 
 : 
‘-, I’ 
provided on a dedicated, separately fused 
AMP crrcuit. 
Location(s) of telephone conduits or cable 
The KSU should be within 25 feet of the 
telephone company (TELCO) RJl 1 C. 
The KSU should be centrally located and 
assurances should be made to stay within 
prescribed cable lengths. 
150 m (500’) 26 AWG Twisted pair cable 
300 m (1000’) 24 AWG Twisted pair cable 
450 m (1500’) 22 AWG Twisted pair cable 15 
runs 
A well ventilated area having a recommended 
temperature range of 60 to 80 degrees (21-25 C) 
Fahrenheit, and a humidity range of 5 to 95% 
(non condensing). . 
Lighting and accessibility of the KSU for 
servicing. 
Protection from flooding, flammable materials, 
excessive dust and vibration. 
Proximity of radio transmitting equipment, 
arc-welding devices, copying machines and other’ 
electrical equipment that are capable of 
generating electriical interferences. 
Access to a good earth ground such as the Telco 
protector or a metallic COLD water pipe. Inspect 
the pipe for non-metallic joints. 
‘so02 UNPACXliaG THE 308EX KSU 
Remove the KSU from the shipping carton and place 
it on a level working surface, face up. Inspect the 
KSU for physical damage. The KSU has no 
serviceable parts. . . 
400.3 JGiu GROUNDING To ensure mat Iham witt upefate properly, a 
good earth ground Is recommended. The Telco 
protector ground terminal or a metallic COLD ! 
water pipe will usually provide a reliable ground 
path. if cold water pipe is used, carefully check 
that the pipe does not contain insulated joints that 
could isolate the ground. In the absence of the 
cold water pipe, a ground rod or other source may 
. ; 
be used. A No. 8 AWG copperwire should be used 
, ‘I 
between the ground source and the KSU. 
THE GROUND WIRE SHOULD BE KEPT AS Sl-td% ’ 
AS POSSIBLE AND CAN BE CONNECTED TO Tt@ 
GROUND LUG LOCATED Oh’ THE RIGHT OF 
THE KSU. (Figure 2.3) 
400.4 KSU INSTALLA-mN “.. 
A) The KSU is designed for wall mounting only 
The KSU should NOT be mounted directly on@-_ , 
masonry surface. 
.- 
8’ 
Cl 
Q 
El 
If the KSU is to te mounted on a masonry 
surface, a wood,?n backboard of sufficient SIZE _ 
should be attached to the wall and the KSU z. 
mounted on the backboard. 
Mount the KSU on the backboard usrng four 
fasteners. (The fasteners should be selected 
carefully so as to be capable of supportrng the ,511 
KSU.) (Refer to Sec. 200.4 for KSU dimension@ 
_-, 
install the ground using an insulated 8 AWG 
copper wire. Attach one end to the grounding IL,.. 
on the leftside of the KSU cabinet and fasten G)) 
the other end to a good earth ground c, 
(Refer to Figure 2.3.KSU layout). _ 
, 
The KSU power supply is located within the .F 
KSU. Because the KSU is a sealed unit. all 
elecft-icai connecttons are provided externally L 1: 
The power cord exits the KSU on the right SIC&: ‘- 
Also on the right is a fuse holder that contains, 
a 0.5 Amp. slow-blow fuse. Power for the 
system is distributed internally (Refer to 
Figure 2.3). 
The power cord should not be used with a 
3-wire-to-2-wire plug adapter. A surge protector 
(ill Model 428) should be used to protect the 
power supply from electrical surges. The surge 
protector should be- installed in accordance wrth 
REV - NOV. 1988 
4-l  
						

							STARPLUS 308EX ISSUE 2 JULY 1,1987 
the manufacturer’s instructions and applicable 
local electrical codes. 
WARNING: 
DO NOT PLUG-IN THE POWER CORD AT THIS 
TIME. 
400.5 KSU CABLING 
On the right side of the KSU are the RJl 1 C 
connectors which are for CO lines. One (1) 25 pair 
Amphenol-type connector is provided on the left 
side of the KSU (Refer to Figure 2.2) and is marked 
J-l. The J-l connector requires 180 degree male 
ended plug cable for proper attachment. 
When connecting cable tail to the KSU, make sure 
the designation on the AMP hood matches the 
designation at the connector’s input on the KSU. 
After plugging in the required cables, a “horse 
shoe” fastener should be placed around the 
mated AMP connectors to secure the cable to the 
KSU connector. 
Verify that the wires tire ‘broperly cross-connected. 
Observe the telephone standard wiring color codes. 
Some points to be aware of while running the key 
telephone cabling are: 
Cabling should be routed to avoid flourescent light 
fixtures. electric motors and generators, welding 
equipment and radio transmitters. Additionally. 
care should be taken to avoid hot locations such 
as steam pipes and furnaces, and areas where 
wiring is subject to abrasion. 
CaUTiON 
It is NOT recommended that power be applied to 
the system during the cable termination process. 
400.6 LIGHTNING PROTECTION 
The 308EX should have central office lines protected 
with proper lightning surge arrestors. The central 
office lines are exposed to damaging surges induced 
by direct or non-direct lightning strikes, 
The protection should contain a complement of 
3-element gas discharge tubes which ground high 
- 
4-2 
potential surges, and associated circuits to absorb 
and filter lower-level surge potentials. Care should be ! 
taken to ensure that not more than one set of I 
 
protectors be installed on central office lines at 
installation premises. Improper installation of line 
protection can present a serious safety hazard. 
400.7 KEY TELEPtiONE INSTALLATION ‘Y. 
- 
A maximum of eight (8) key telephones may be k 
ins+Lalled with the 308EX Key System. Each key 
telephone requires 2 pair (4 wires) for proper win: ‘;D 
It is commended that 3 pair twisted pair cable be 
used to connect the telephones to the system on[@,$ 
“home run” basis. The telephone end of the cab@:,!-, 
should be terminated on a modular jack. 
At the MDF end of the home run, the cable shoul&‘:‘-” 
be terminated on a separate station connecting blgi_c, cl 
(66Ml-50) for cross connection to the “J” cabie. 
This method of cabling will allow for easy isolation. 
of station equipment during trouble shooting ,_ I’ 
procedures. 
:’ 
400.8 WALL MOUNT KIT INSTALLATION 
All connections to the Key Telephones are fully ’ , 
modular. To wall mount the Key Telephone, it is 
necessary to have one (1) Wall Mount Kit and :‘. 
one (1) 630-A type modular wall mount jack 
assembly equipped with two mounting lugs. 
A) Remove the mounting cord from the telephon?- 
This cord will no longer be needed. 
B) Substitute the short modular cord on the wail ’ 
mount baseplate for the mounting cord remov$& 
in A) above. . 
C) Rotate .the plastic number retainer upwards to : 
expose the screw underneath. Remove the ’ .* 
screw and slide the cover plate under the 
number retainer towards the hookswitch. 
D) Replace the cover plate with the handset retaih-9 
tab that is mounted in the wall mount base 
plate, and secure with the screw fromCabove. 
E) Rotate the plastic number retainer downwards 
and snap into place. 
F) Align the mounting tab on the outer edges of th? 
wall mount base with the holes on the key 
tglephone base. Snap shut and fasten with the 
screw.  
						

							.,: 
STAWPLUS 308EX ISSUE 2 JULY 1,1987 
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mz- 
110 
G) The telephone can now be mounted to the wall 
by mating the two keyhole slots on the baseplate 
with the lugs on the modular cover assembly. 
Check to make sure that the modular connector 
on the baseplate-has a firm connection with the 
connection on the wall jack. (Figure 4.1) 
400.9 PHONE BOX IN§?ALLATION 
The Phone Box can make calls to preassigned 
stations as well as receive and answer intercom 
calls. The unit should be located in weather 
protected areas where paging or monitoring is 
required. 
The Phone Box consists of a top housing and bottom 
mounting plate. The top housing has a speaker, 
microphone, wire terminals and electronic circuitry. 
The housings are separated by inserting a thin, 
flat-edged tool at the bottom rim of the assembly. 
By pressing inwards on the recessed retaining tab, 
the assembly will open. 
The connection of the Phone Box(es) to the KSU is 
identical to that of the electronic keyset. 
Refer to See. 400.7. 
The bottom plate of the Phone Box assembly is 
fastened to the wall by mounting with customer 
supplied No. 8 or larger pan head screws. The cable 
is routed through the cable-entry holes provided on 
the bottom plate and is connected to the screw 
terminal strip on the upper housing. Four (4) 
screw terminals are identified by wire color on the 
sIk-screened printed circuit board to correspond 
with the wiring sequence at the punchdown 
connector at the MDF. 
The slack wiring should be pulled back through 
the bottom mounting plate and the top housing 
snapped shut. 
400.10 EXTERNAL MUSIC SOURCE 
MUSIC-ON-HOLD, as well as BACKGROUND 
MUSIC can be connected using a customer provided j 
tuner, tape deck, etc. Separate Music-on-Hold and 
background music volume adjustments are provided 
on the KSU. (Figure 2.2) Background Music (BGM) 
levels are also adjustable :lt each key telephone set. 
Connections are made on the J-l connector, 
the MOH pair. (Table 4-2) 
J 
If background music i’s desired, go to Section ; 
500 
(programming), Data Field 21 and enable 
background music. 
400.11 ALARM INSTALLATIOi . 
--. 
The 306EX system may be used to transmit an ala’& 
signal to any station (except phone boxes) in the @ 
system. When activated by an external alarm system! 
a 
COntinUOUS tone is transmitted to the station 
speakers. Leads from the external alarm are 
connected to the terminals ALMT and ALMR 
(Figure 4.3). See Section 500.7 for programming ’ 
Alarm states. After the alarm has sounded, ,. -1~. 
the system must be reset by first clearing the alarm -,.: 
condition on the external system and then by liftin 
the receiver at any station programmed to receive Y! 
alarm and dialing 9. 
-. 
400.12 EMTTERY BACK-UP -. 
The STARFLUS 308EX can be fully supported for 
complete operation during a power failure. 
An externally provided 24 VDC battery package : 
(gel type) and floa! charger is required. 
A convenient plug for battery connection is located,- 
on the left side of the KSU. (See Figure 2.2). 
Table 4.2 provides examples of recommended 
battery sizes for 2, 4 and 8 hour back-up at 
various system sizes. 
4-3  
						

							STARPLUS 308EX 
ISSUE 2 JULY 1.1987 
F”--. 
e:.-. .:. 
400.13 EXTERNAL PAGING 
An amplifier for external paging may be connected 
to the 308EX Key Telephone System. Allowed 
telephones in the system can access this 
paging 
equipment by using a dial code. There ;s one (I ) 
External Paging Zone (without ampllfler) provided for 
in the 308EX Basic System. Two way talkback 
paging is possible.-- 
Tne output impedance of the paging zone is 600 
Ohms at 0 dBm. The low level voice signal output 
is specified at 5 milliwatts. Dry contact control is 
provided to switch “ON” the external amplifier or to 
momentarily remove background music, if it IS 
externally supplied to the paging device. 
All connections are made on the J-l punchdown 
connector (Refer to Figure 4.3). The voice output 
from the Key Telephone System is provided on the 
EPVT B EPVR pair. The “make” contacts are 
identlfted as pair EPCTL. After connection is made to 
the paging port, DTMF tones are generated over the 
page port for an ancillary zone page unit. 
400.14 LOUD BELL CONTROL 
The 308EX system provides relay contact closure to 
activate external signaling equipment when an 
outstde call rings in. The station that will receive 
this Loud Bell Control is selected in programming, 
data field 28. 
The Loud Bell Control dry contacts will follow the 
assigned ringing of that statton. Locate the LBCT 
and LBCR terminals on the connecting block(pair 21) 
Connect two wires to these terminals and route them 
to a DC power source provided by the customer. 
All Incoming CO lines assigned to ring at the station 
programmed to receive Loud Bell ringing will activate 
ihe Loud Bell Control, causing the LBC contacts 
to sequence In a .5 second on!2.5 seconds OFF 
rate until all lines have been answered. The LBC 
contacts are current-rated at 1 Amp!24 VDC. 
400.15 EMERGENCY TRANSFER 
In the event of a commercial AC power interruption, 
one CO. PBX line will automatically transfer to a 
single 
tine telephone (if Installed) for emergency 
communications. This SLT should be ed,;ipped 
with a ringer. It can be DTMF type instrument or I 
rotary dial. Connection is done on the Jl block, -. 
pair 23. Table 4.2. 4.. 
400.16 HEADSET INSTALLATION 
The 308 Key Telephone has been designed to 
operate with industry standard modular headset 
adapters and operator headsets. To modtfy a 3OE: ~. .., 
Key Telephone to use an external headset, plug tb,;-. 
headset adapter cord into the vacant handset jac@ 
on the key telephone base. Plug the telephone , 
handset cord into the headset adapter box where[ 
indicated by the headset manufacturer’s rnstructim&y j 
Then turn to the programming section of this man@l 
station configuration (data field 03). Enable the 
headset option for that particular station. 
Speakerphone operation is automatically disabled 
on Enhanced models and such features as On 
Hook Dialing and Handsfree speakerphone are 
rendered inoperable. However: lncomlng page. vo= 
announcements, tone ringing and background mus@j 
will still be heard over the keyset speaker. , 
400.17 POWER-UP AFdD H’dSTALLATlON 
CHECKLIST --.:. 
Prior to actual power-up and initialization. the key 
system should be checked over to avoid start up 
delays or improper loading. A step-by-step check 
list is provided for this purpose. 
A) Ensure that the KSU is properly grounded 
according to the instructions in Section 400.3. 
B) Inspect the MDF for shorted wiring or impropei 
polarity that would affect the Key Telephones. 
C) Make sure that plug-ended MDF cables 
connected to the KSU are secure and are 
plugged into the correct position. 
D) Plug the AC power cord into the dedicated 
117 VAC outlet. 
4-4  
						

							S-l-ARPLUS 308EX KEY TI!bEPHOME SYSTEM 
Stallon 11 RED BL;WH 
BLACK OR/WI-l 
YELLOW wH!OR 
‘v:;w j g 
i --- 
GREEN 
WHiBL 
Stallon 13 RED 
BU\Nti 
L 
BACK WH’OR YELLOW 0Fiiwt-i 
GREEN WHlBL 
StatIon 14 RED BUWH 
BLACK WH/OR 
YELLOW OR’WH 
GREEN WH.‘BL 
Statm 15 RED I 
BL!WH 
BLACK 
! Wl-VOR 
YELLOW ORI’WH 
i 
t 
i 
i 
4- 
i ! GREEN 
WU:8L 
Station 16 RED BL’WH 
BLACK WHIOA 
YELLOW GRIWH 
Stahon 17 GREEN ww6L 
EED 
Buwt-l 
EZACK 
WHIOR 
YELLOW 
c+vwH 
L , I 
! MUSIC~ON~HOLDiDACKGROUND MUSK: 
EXTERNAL PAGE (VOICE) ‘, 
EXTERNAL PAGE Dr?Y C’%TACTS 
c 
I 
ALARM (Sensing) Fwcbon 
VT1 MDF 
Catde 
WbliBL 
ti 
vr3 wH!SL 30 
VR3 SUWH 5 
DT 3 RD‘BL 
I 31 
OR3 BL’RD ! 6 
- 
vi-4 
RDIOR 32 
va4 Of%0=ID 7 
DT 4 RD/GN 
33 
OR4 GN!RD 8 
vr5 RD:BN 
VA5 BNiRD i. “Z 
DT 5 
RDfSL 35 
DR5 
SL’RD / 10 
VI6 
81c’BL 36 
VR6 BUBK 11 
DT 6 BK:OR 
37 
Cfi6 ORiBK > 12 
vi7 BWGN 38 
vR7 
GN;BK 13 
DT 7 
Bt‘L%N 39  i 
CR7 
I 6tmK I 
14 
VT8 B&St. 
I 40 
! LOUD BELL CONTROL 1 (Contact) 
Spare 
- 
_ 
Note: If no PFT connector Is located on the right 
side of the KSU, the power failure (CO line 1) trans- 
fer is wired in the Jl connector (VI/GN and GNNI; 
pins 48T and 23R). r 
F 
I 
l- 
EPVT YUGN 43 
EPVR 
GwYL 18 
EFCTL YUBN 
44 
EI;CTl. BNiYL 
19 
ALWT YUSL i 45 
PMR SUYL 20 
LBCIT WBL 46 
LEClR E%vl 21 
WGN 48 
C%M ’ 23 
REV - Nov. 1988  
						

							SYARPLUS 308%X ISSUE 2 JULY I,1987 
- 
400.18 5A-l-ERY BACK UP UNIT (BBU) 
I. INTWODUCTIQN 
The BBU houses&Q 12 V batteries connected in 
series which provide 24 V of DC power. The BBU 
also contains an AC input cord which provides 
charging power when the batteries are not rn use. 
Batteries are NOT. Included. 
A 10” 14 gauge jumper wire is provided for 
Interconnectron of the two 12 V batteries. 
Four adapter wares (approx. 2”) are provtded for 
matching the exact battery termrnal sze. A plastic tie 
wrap 
IS provided for securing the batteries once 
installed 
The BBU 
IS approved for use only with the Globe 
battery, model GC 1290 rated at 9 0 amp hours; 
and the Power Son!c. model PS-12240 rated at 
24 amp hours These batteries may be obtained 
by calling your local telecommunicatrons supply 
house or calling the manufacturer direct and asking 
75 for the nearest drstnbutor. 
% II. DESCRIPTION 
A Capacity 
The following table shows the approximate times 
for a fully charged supply to reach 90% voltage 
under different load conditions. 
TA8LE A-GLOBE BATTERY 
Discharge Current vs Time 
Current vs Time 
5 
amps 1 hr 
2.5 
amps 2 hr 30 min 
1 
amP 7 hr 30 min 
.5 amp 18 hr 
,325 amp 20-i ht 
LI 
YASLE B-POWER SONIC BWTT%RY 
Dischargs Currw~t vs Time 
Current vs 
Time 
5 
amps 4 hrs 
, 
2.5 
amps 8 hrs 
1 
amP 20 hrs 
NOTE: All electronic key systems will begin to 
operate Intermittantiy below a certain 
input voltage. Typically reliable operation 
-w&be maintained to 90Fo of full 
voltage. B. Dimlansions 
8” high, 13.5” wide, 7.75” deep ‘..“I^ 
Weight without batteries: 1 1 lb. 
C. Specifications 
-Output fused at 3.2 A, 250 V 
-Current limIted;- constant voltage charger 
- Gel type batteries 
-Charger float voltage is 27.6 V 
( 
- Cut off voltage point is 21 V 
l 
D. Pwsr R,;Pcluirements l 
Input 117 VAC, 60 Hz 
I 
Fused at 0.5 A, 250 V 
E. Environment / 
Temperature: 0’ - 50’ C 
Humidity: Oyo - 95% 
III. IMSTALLATION 
A. Introduction 
These instructions cover installation procedure 
for the BBU. See Figure 2.2 for the location o 
the input socket. The input socket of the key 
system must be a female Mate-N-Lok.tyQe 
connector. 
8. Installation Chedlist 
2. _. 
The following items are required to install the 
BBU: 
1 BBU with wire kit (5 wires) and tie wrap 
4 No. 12 panhead screws (tf wall mounted 
Screwdriver 
Backboard or wall shelf if applicable I 
C. Mounting 
I 
1. The BBU must be located within 6’ of an 2 
AC receptacle and 3’ of the KSU: : 
2. The BBU can be placed on a wa)l shelf or It 
can’be wall mounted. 
3. To wall mount the BBU: 
-The 6BU is designed to be mounted on 8 
backboard, either the backboard the KSU 
is mounted on or one specificzlly for the [ 
BBU. 
- Mark for screw placement. either by ,.:, 
measuring (the 2 top keyhole mounting 
slots are 8 % ” on center) or by placing the 
BBU against the backboard (before 
installing batteries) and marking the iocatioo 
of the 2 slots 
4-6  
						

							- Partially insert 2 No. 12 panhead sheet 
metal screws into the backboard. 
-Suspend the BBU on these 2 screws. 
The large section of the keyhole will allow 
the unit to-easily pass over the screwhead. 
- Slowly lower the BBU so the small section 
of the keyhole is direct!y behind the 
screwhead. 
- Tighten each screw so the unit fits snugly 
against the backboard. 
- Insert 2 more screws into the bottom of the 
BBU where 2 more keyhole mounting slots 
are located. 
D. Connections 
1. Remove the BBU cover by turning the 
4 screw locks and lifting the cover. 
2. Install the two 12 V DC batteries in the 
battery compartment. Thread the plastic tie 
wrap through the vent holes in the side of the 
battery compartment and fasten around both 
batteries. Cinch the tie wrap tight. 
3. Connect one of the adapter wires to the 
black 10” jumper wire. Now install this jumper 
wire assembly between the NEG (- ) terminal 
of battery 1 and the POS (+) terminal of 
battery 2. 
4. Connect another adapter wire to the BBU 
red battery wire. Now connect this wire to 
the POS (+) terminal of battery 1. 
5. Connect the BBU black battery wire to the 
NEG ( - ) terminal of Battery 2. 
6. Make sure the key system being connected 
3 
is turned on. Then connect the BB’J DC 
output cable to the battery input of the key 
system KSU. 7. Make sure the BBU power switch is In the 
OFF postIon. Then plug in the AC power 
cord. , 
8. Turn the power switch on the BBU to 
ON 
Installation of the BBU is now complete. 
IV. GENERAL INFORMATION 
There is a “power on” LED which IS IIt when the -q 
supply is connected to the AC power source. 
There is also a “battery” LED which IS IIt when the 
battery back up is in use. The BBU IS a flltered 
battery back up power supply. Both rnput and outp: 
are fuse protected The charger clrcult IS floattng 
with respect to ground The charglngclrcult provide 
a constant voltage and 
IS current limrted to 350 I 
mllllamps to the 2 gel cells. 
t 
V. MAINTENANCE 
In order to ensure proper operation of the battery , 
supply. the foilowing ooeratto.1 should be performej 
once a month: 
- Unplug the key system and the battery back up 1 
unit from the AC power to allow operation from 
the baiteries for 15 minutes 
- Plug the key system and BBU power cord back 
into the AC outlet n 
VI. TROUBLESHOOTING 
When trouble IS reported, verify that AC power 
IS 
being supplled to the unit and that there are no 
blown fuses. Check the LED’s to see if they are 111 
Assistance tn trouble shooting IS available from the 
factory. When cajlrng you should have a VOM and ( 
test set avaIlable and be calling from the job ste 
Call l-800-843-4863. 
4-7  
						

							STARPLUS 308EX ISSUE 2 JULY 1,198? 
TABLE 4-2 
A-GLOBE BATTERY , 
CONFIGURATION 
1x2 2x4 
3x6 3x8 
AMP DRAW 0.5 AMP 0.7 AMP 1 AMP 1.4 AMP 
l APPROX 
BACK UP TIME 
I 18 HRS 
I 12 HRS 
I 7.5 HRS 
I 5 HRS 
B-POWER SONiC BATTERY 
CONFIGURATION 
3x6 
1 3x8 
AMP DRAW 0.5 AMP 0.7 AMP 1 AMP 1.4 AMP 
l APPROX 
BACK UP TIME 20+ HRS 20+ HRS 20 HRS 15 HRS 
NOTE: Approximate back-up times depict maximum current draw. 
Actual back-up times will vary depending on system use and ambient temperatures. 
Instaila:lon of the BBU IS now ccmplele 
+ 
m 
24 VDC 
- 
Low Vollage Plug Ou!puls Battery Compartment 
dBBIJ Charger ~~1 
Jumper 
BaK 2 
4-8  
						

							STARPLUS 30BEX 
ISSUE 2 JULY 1,19$7 
, 
I 
 
i 
I 
P 
 WALL MOUNT TYPE 
630 JACK 
-7 
 NE 
‘. BASE PLATE 
CONNECTING , 
BLOCK 
MOUNTING PLATE ’ 
i ‘,, /_ 
PLATED STUDS 
/ FOR WALL 
MOUNTED _  :.:I: 
PHONES 
4-9  
						

							STARPLUS 308EX 
KEY TELEPHONE SYS~M 
I STATION WIRING 1 KSU d-pin 
I 
Ksu -- 
i PFT connector I I FROM RJI IC 
FRocEssoR OR 
I 
POWER FAILURE 
STATION I I 
I 
-- 
I I -NOTE1 
I 
I 1 np 
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/ np I Green 1 / I 
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I 
CO LWE 1 
RF-G 
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DY 
REV - NOV. 1988 
4-10