Toshiba Strata E Electronic Key Telephone System Installation And Maintenance Manual

							INSTALLATION INSTRUCTIONS 
SECTION 500-036-200 
- JANUARY 1988 
tenance access via its built-in 300/l 200 bps mo- 
dem. One SDTU per system is required for Re- 
mote Administration/Maintenance. 
STRATA Se: 
05.82 Insert connectors Pl and P2 on the 
_ SDTU into the P8 and P9 connectors on the 
SCCU (Figure 12). Route the provided jumper ca- 
ble from the SDTU P3 connector to the P22 con- 
nector on the SMAU. 
FIGURE 1 2-Se/We SDTU LOCATION 
STRATA Vie: 
05.83 Insert connectors Pl and P2 on the 
SDTU into the P8 and P9 connectors on the 
VCCU (Figure 12). Route the provided jumper ca- 
ble from the SDTU P3 connector to the P29 con- 
nector on the VMAU. 
05.90 STMU (STRATA Se only) 
05.91 Required for connection to an HSMB to 
provide SMDR for a STRATA Se HKSU. 
05.92 Refer to Figure 13, and insert connec- 
tors P4 and P5 on the STMU into the P4 and 
P5 connectors on the SCCU. Route the provided 
jumper cable from the STMU P23 connector to 
the P23 connector on the SMAU. 
t-we for clarity 
FIGURE 13-STMU LOCATION 
06 BASIC CABLING REQU!REMENTS 
06.00 Station Wiring 
06.01 Intercom codes (station numbers) are as- 
signed permanently to specific cable appear- 
ances in the system. Make sure the station ca- 
bles are connected to the proper terminals. 
06.02 Using the industry-standard color code 
sequence, terminate the individual 2- or 3-pair 
station cables consecutively on the MDF (3-pair 
cabling required for OCA). Connect the HKSU ca- 
ble pairs to the station cable pairs. 
WARNING! 
When installing station cable, do not run 
parallel to and within 3’ of an AC power 
line. Such power lines should be crossed 
at right angles (90”) only. 
06.03 At the station locations, terminate the 
station cable in a conventional 4- or 6-conductor 
modular station connector to accommodate the 
modular line cord from the EKT. The standard 
modular EKT cord length is 7’, while the max- 
imum allowed length is 25’. Figure 14 shows 
the EKT wiring arrangement. 
06.04 Various manufacturers of modular sta- 
tion blocks have employed different color codes 
to indicate the sequence of pairs in their blocks. 
However, the color code most commonly used 
is shown in Figure 15. Verify the configuration 
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							INSTALLATION INSTRUCTIONS 
SECTION 500-036-200 
JANUARY 1988 
FIGURE 14-EKT WIRING FIGURE 16-Se/Vie HKSU RIGHT SIDE PANEL 
of your modular blocks before connecting the sta- then terminates directly into a locally provided 
tion cables. RJ-25C jack (Figure 15). 
NOTE: 
White and blue (T3 & R3) are used for OCA 
voice pair on station line connectors. 
SINGLE PAIR RJ-11 C WIRING 
 
TO CO/PBX 
----- 
L---i 
TT) HKSU 
FIGURE 15-RJ-11 C/RJ-25C COLOR CODE 
06.10 CO Line Connection 
06.11 The CO/PBX lines are connected to the 
system via 6-wire modular line cords (no longer 
than 25’) that are connected directly to the 
HKSU’s right side panel (Figure1 6)-CO1 modu- 
lar connector on Se; l-3 and 4-6 modular con- 
nectors on Vie. The opposite end of each cord 
STRATA Se STRATA Vie 
06.12 The CO/PBX lines may also be con- 
nected via 2-wire modular line cords to connec-- 
tors COl, C02, and CO3 (Se) or connectors 1-3, 
4-6, 2, 3, 5 and 6 (Vle) on the right side panel 
(Figure 16). The opposite end of each cord then 
terminates directly into a locally provided RJ- 
11 C jack (Figure 15). 
07 SYSTEM POWER-UP INITIALIZE 
07.00 General 
07.01 A list of standard system data assign- 
ments (stored in ROM) can be entered at any 
time by performing the initialize sequence out- 
lined below. The system must be initialized 
when it is first installed or whenever the SCCU/ 
VCCU PCB is changed. This will allow the sys- 
tem to be tested and any faults to be corrected 
before time is spent on programming. 
NOTE: 
Do 
not initialize if using a preprogrammed, 
battery-protected SCCU/VCCl.J. 
07.02 Refer to Figure 17 and verify that the 
battery on the SCCU/VCCU is connected to en- 
sure that data changes entered after initializa- 
tion will not be lost due to power failure. 
NOTE. 
The SET LED will not function if the SCClJ/ 
VCClJ battery is not connected. 
-3  
						

							STRATA Se STRATA Vie 
I 1. 
FIGURE i 7-SCCU/VCCU BATTERY STRAP 
07.03 To initialize STRATA Se system data 
memory, refer to Figure 18, temporarily connect 
a 20-key EKT to station 13, and perform the fol- 
lowing: 
STRATA Se STRATA We 
n’O]~~ 
LJ 
rQ 
f=Ji 
43 
SET 
FIGURE 1 8-Se/Me INITIALIZING SWITCHES 
1) Place the system power switch in the ON po- 
sition. 
2) Depress the 
SET switch and allow it to lock. 
d SET LED goes on. 
@ Station 13: LED 19 goes on. 
3) Depress the m key on station 13. 
@ Statibn 13: SPKR LED goes on. 
-11 
INSTALLATION INSTRUCTIONS 
SECTION 500-036-200 
_ JANUARY 1988 
4) Dial 3 a B on the dial pad. 
5) Depress the 01 and 03 keys on station 13. 
l The corresponding LEDs go on. 
, 
6) Depress the m;T1T;l key on station 13. 
l Station 13: All LEDs (except SPKR and 
MIC) begin blinking. 
7) Depress and release the S&J switch again. 
l SET LED goes off. 
l Station 13: LEDs go off. - 
8) Cycle the power switch 
OFF and ON. 
07.04 To initialize STRATA Vie system data 
memory, refer to Figure 18, temporarily connect 
a 20-key EKT to station 17, and perform the fol- 
lowing: 
1) Place the system power switch 
(POW) in the 
ON position. 
2) Depress the 
INT switch on the left side 
panel, and hold it in. 
3) Depress the 
SET switch and allow ifto lock: .- 
* SET LED goes on. 
8 Station 17: All LEDs except SPKR and 
MIC flash continuously. 
4) Depress and release the 
SET switch again. 
@ SET LED goes off. 
l Station 17: All LEDs go off. 
5) Release the 
INT switch. 
6) Cycle the power switch 
OFF and ON. 
07.10 Clearing Automatic Dialing 
07.11 The Automatic Dialing memory con- 
tains random numbers when the system is pow- 
ered up initially. Therefore, it is necessary to 
clear the memory to prevent meaningless 
numbers from being dialed. 
IMPORTANT! 
Station 13/l 7 may be equipped with ei- 
ther a lo- or a 20-key EKT. Prior to per- 
forming the procedure that follows (if a 
IO-key is to be used), refer to Paragraph 
02.201’Figure 1, Programming Procedures, 
Section 500-036-300, for instructions on 
using a 1 O-key EKT for programming. 
07.12 To clear the Automatic Dialing (-System 
and -Station) memory (up to 40 numbers), pro- 
ceed as follows: 
._ 
:  
						

							INSTALLATION INSTRUCTIONS 
SECTION 500-036-200 
JANUARY 1988 
1) Lock in the SET switch. 
* Station 13/17: LED 19 lights steadily. 
2) To clear station automatic dialing, depress 
the m key and dial 11 a. 
l SPKR LED flashes continuously. 
e Depress keys mm a a. 
0 Depress the m key. 
_ 3) To clear system automatic dialing, depress 
the m key and dial a 1 a. 
l SPKR LED flashes continuously. 
0 Depress keys 
q q q q . 
l Depress the m key. 
4) Release the SET switch. 
l The SET LED and LED 19 on station 
13/17 go off. 
07.20 Alphanumeric Messaging 
Initiaiiza- 
tion 
NOTE: 
There are 40 messages available in system 
memory (60 - 99), and 10 available at 
each station (10 - 19). 
07.21 To initialize system alphanumeric mes- 
sages, follow these procedures: 
1) Lock in the SET switch. 
l Station 13/l 7: LED 19 lights steadily. 
2) To clear codes 60 - 99, depress the w 
key and dial 3 j 9. 
l SPKR LED flashes continuously. 
@ Depress keys a a a a. 
l Depress the m key. 
07.22 To initialize station alphanumeric mes- 
sages, follow these procedures: 
1) Lock in the SET switch. 
0 Station 13/17: LED 19 lights steadily. 
2) To clear codes 10 - 19, depress the m 
key and dial 3 0 a. 
0 SPKR LED flashes continuously. 
e Depress keys a a a 
q . 
l Depress the TxI’TIT;I key. 
NO TE. 
System messages can only be programmed 
or changed at station 10. When the system 
is initialized, five messages are automati- 
cally stored in memory.. 
60: OUT TO LUNCH 
61: IN A MEETING 
62: CALL 
63: BACK AT ‘1~ 
64: RETURN ON 
07.30 
tion 
07.31 Timer Reminder Messaging Initializa- ’ 
To clear Timer Reminder messages, fol- 
low these procedures: 
1) Lock in the SET switch. .- 
@ Station 13/17: LED 19 lights steadily. 
2) To clear timer codes, depress the m key 
and dial 4 p 1. 
l SPKR LED flashes continuously. 
l Depress keys q q QJ a. 
l Depress the m key. 
07.40 System Real-Time Clock/Calendar 
Adjustment 
07.41 The following procedures detail how to 
set the date, time and day in the system. 
NOTE: 
This operation is possible from station 10 
only. 
1) Handset on-hook. 
2) To set date: 
4 
b) 
d Dial a i Q 1 (or m m 1 I). 
Dial in date (year/month/day) in the for- 
mat WMMDD. Enter a leading 0 for single- 
digit month and day. 
Depress the 4 (or m) key. 
3) To set time: 
a) Dial 3 i Q a (or m m i 3). 
b) Dial in time (hour/minute/second) in 
24-hour clock format HHMMSS. Enter a 
leading 0 for single digit. 
c) Depress the 3 (or m) key. 
4) To set day: 
a) Dial 1 i !J B (or mm 11). 
b) Dial in the day (0 represents Sunday, s 
Monday, etc., through 3 for Saturday). 
c) Depress the a (or m) key. 
08 EKT INFORMATION 
08.00 General 
08.01 Eight different electronic key tele- 
phones (EKTs) may be used in the system. See 
the 
General Description for complete descrip- 
tions of the EKTs. 
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							INSTALLATION INSTRUCTlONS 
SECTION 500-036-200 
_ JANUARY 1988 
08.02 All EKTs share the same dimensions: 
Height: 3.7” (94 mm) 
Width: 7.1” (180 mm) 
Depth: 9.5” (241 mm) 
08.03 All EKTs feature modular handset cords 
and are connected to the system via 4-conduc- 
tor modular line cords. With the exception of the 
single-line EKT, all EKTs are also equipped with 
an additional modular headset connector. In ad- 
dition, each EKT model may be used at any or 
all stations. 
08.10 HVSU Installation 
08.11 All Toshiba EKTs may originate Off- 
hook Call Announce (OCA) calls via intercom 
dialing, transfer/conference dialing, or Direct 
Station Selection. There are no special require- 
ments to enable EKTS to originate OCA calls. 
08.12 However, EKTs which are able to re- 
ceive OCA calls: 
@ Must be equipped with an HVSU PCB. 
l Must be equipped with a 3-pair modular 
cord. 
08.13 Follow the instructions below to install 
an HVSU. 
1) Loosen the four screws holding the bottom 
cover of the EKT and remove the cover. 
2) Remove the HVSU label from the HVSU and 
attach it to the EKT label. 
NOTE. 
This step is very important so that an 
equipped EKT may be easily identified. 
3) Plug the HVSU into the P5 connector on the 
bottom of the EKT main board (Figure 19). 
4) Reinstall the EKT bottom cover and tighten 
the four screws. 
08.20 EKT Wail Mounting 
08.21 
All EKTs are mounted in the same 
manner, and they may be mounted on a wall 
or any other flat, vertical surface to which the 
base can be secured. When selecting the mount- 
ing site, consider the EKT’s weight and the ad- 
ditional stresses to which the mounting will be 
subjected. 
08.22 Mounting screws or mollies, appropri- 
ate for the surface on which the telephone is 
to be secured, must be provided by the installer. 
FIGURE 19-HVSU LOCATION 
08.23 Locking tabs secure the EKT’s base. 
The direction in which the base.is attached to 
the EKT determines whether it is used as a desk 
unit or wall unit (it is factory-configured as a 
desk unit). To wall-mount an EKT, perform the 
following steps: 
1) Disengage the locking tabs by pushing down- 
ward on the base (Figure 20), and then rotate 
the base 180” and insert it into the lower 
four locking slots. 
FIGURE 20--REMOVING .EKT BASE 
: 
-13-  
						

							INSTALLATION INSTRUCTIONS 
SECTION 500-036-200 
JANUARY 1988 
2) Route the line cord through the notch in the 
bottom of the EKT. 
3) Secure the unit to the desired wall site. (Use 
dimensions shown in Figure 21 to position 
the unit.) 
KNOCKOUT 
FIGURE 21-EKT MOUNTING HOLES 
4) Route the tail cord through the holes in the 
base and secure the EKT (Figure 22). 
FIGURE 22-EKT WIRE ROUTING 
5) To reposition the handset handger, insert a 
piece of wire (such as a paper clip, etc.) into the cutout just above the hanger (Figure 23), 
disengage the hanger’s locking tabs, and -.:: 
slide the hanger out. Rotate the hanger 180” 
and reinsert it. Note that the hanger mates , 
with the notch in the handset. 
HANDSET 
HANGER 
FIGURE 23-HANDSET HANGER 
08.24 An optional 13’ handset cord is avail- 
able from your Toshiba supplier, and it-is sug- 
gested that this cord be used when wall mount- 
ing an EKT. 
08.30 EKT Connections 
08.31 Connect the appropriate length line 
cord to the modular connector, route the cord 
to the EKT and connect to the EKT modular jack. 
Test the EKT per Paragraph 08.50. 
08.40 Carbon Handset Installation 
08.41 All 6000-series EKTs are factory- 
equipped with dynamic handsets. If a carbon 
handset is desired, an EKT modification is nec- 
essary. With the exception of the single-line 
EKT, the following modification is applicable to 
all 6000-series EKTs: 
1) Remove the four screws holding the base 
cover, and remove the base cover. 
2) On the exposed PCB, cut jumpers marked 
“CARBON” (see Figure 24). 
NOTE: 
Figure 24 shows the locations of the car- 
bon resistors for both handsfree answer- 
back (HFU) and speakerphone (SPF) EKTs. 
3) Reinstall the base cover and its four screws. 
-3 
: 
-14-  
						

							r 
FIGURE 24-CARBON HANDSET MODIFICATION 
4) Replace the dynamic handset with the car- 
bon handset. 
08.50 EKT Functional Check 
08.51 In order to verify basic system func- 
tions, and confirm the proper functioning of the 
EKT itself, perform the following test procedures 
at each station. Begin with the lowest num- 
bered station, and continue through all stations. 
08.52 With handset on-hook: 
a) Depress the m key. 
0 INT LED: in-use flash. 
8 SPKR LED: on steady. 
l MIC LED: on steady. 
@ Listen for intercom dial tone via EKT 
speaker. 
b) Adjust speaker volume with the lower control 
on the right side of the EKT. 
c) Depress the m key. 
e CO1 LED: In-use flash. 
* SPKR & MIC LEDs: on steady. 
8 Listen for CO/PBX dial tone via the EKT 
speaker. 
d) Dial any digit (a - a) on the dial pad and dial 
tone stops. 
e) Depress the w key. 
e Listen for circuit break followed by dial 
tone after approximately 2 seconds. 
f) Continue to depress each m key in order on 
every EKT; the following should occur: 
0 CO LED: In-use flash. 
INSTALLATION INSTRUCTIONS 
SECTION 500-036-200 
- JANUARY 1988 
0 SPKR & MIC LEDs: on steady. 
l Listen for CO/PBX dial tone via the EKT 
speaker. 
NO 
JE. 
If no CO/PBX facility is connected to a m 
key, dial tone cannot be heard but the LED 
is still functional. 
g) When CO testing is complet’e on each EKT, 
continue the EKT test by depressing the m 
key. 
. SPKR & MIC LEDs: off. 
l EKT speaker off. 
h) Depress the m key. 
l DND LED: on. 
i) Depress the m key. 
* DND LED: off. 
j) Depress the m key. 
0 CO1 LED: In-use flash. 
a SPKR & MIC LEDs: on steady. 
0 Listen for CO/PBX dial tone via the EKT. 
speaker. 
k) Depress the m key. 
@ CO1 LED: On-hold flash. 
@ Speaker off (no dial tone). 
* SPKR & MIC LEDs: off. 
I) Depress the m key. 
* CO1 LED: In-use flash. 
l SPKR & MIC LEDs: on steady. 
l Listen for CO/PBX dial tone via the EKT 
speaker. 
m) Depress the m key. 
l CO1 LED: Conference call flash rate. 
@ Dial tone continues. 
n) Depress the m and m keys. 
@ CO1 LED: off. 
@ SPKR & MIC LEDs: off. 
@ Dial tone: off. 
o) Call the EKT that is being tested from another 
station. 
0 Called station’s INT LED: Incoming Call 
flash. 
* Listen for the caller’s voice via the called 
EKT’s speaker after the single tone signal. 
p) Dial a at calling station. 
0 Tone signalling heard via the called sta- 
tion’s speaker. 
.a 
: 
-15-  
						

							INSTALLATION INSTRUCTIONS 
SECTION 500-036-200 
JANUARY 1988 
q) Adjust tone signalling volume with upper con- 
trol on the right side of the EKT. 
r) Depress the m key. 
l INT LED: In-use flash. 
0 SPKR & MIC LEDs: on steady. 
l Listen for intercom dial tone via the EKT 
speaker. 
s) Lift handset. 
. SPKR & MIC LEDs: off. 
l Speaker off. 
l Listen for dial tone via handset receiver. 
t) Call another station and talk into the handset 
transmitter. 
l Verify that your voice can be heard via the 
called EKT’s speaker. 
u) Hold down the m key, and set the handset 
back on-hook. 
o INT LED: In-use flash. 
o SPKR & MIC LEDs: on steady. 
v) Tap the EKT microphone and verify that the 
sound can be heard via the called EKT’s 
speaker. 
w) Depress the m key while tapping the micro- 
phone and verify that the sound cannot be 
heard via called the EKT’s speaker. 
@ MIC LED: off while m key is depressed. 
x) Depress the m key. 
l INT LED: off. 
l SPKR & MIC LEDs: off. 
NOTE: 
Continue this portion of the EKT testing for 
any stations equipped with OCA. If the sys- 
tem has no OCA stations, continue to Par- 
agraph 08.53. 
y) Busy-out an OCA-equipped station. 
z) Call that station from another EKT. 
aa) After receiving busy tone, dial 8. 
NOTE. 
if the system is programmed for automatic 
OCA, it is not necessary to dial E-step bb) 
is in effect immediately after dialing the 
busy station. 
bb) The called station receives a tone burst 
through its speaker, after which a speech 
path exists between the two stations. 08.53 This completes the station functional 
check for the EKTs; repeat the procedure for all 
EKTs in the system. 
09 
INSTALLATION OF OPTIONS (External) 
09.00 Off-hook Call Announce 
09.01 General: Off-hook ..Call Announce 
(OCA) allows a station user, while in conversa- 
tion via the handset (off-hook), td receive inter- 
com calls through the EKT’s speaker. The user 
may also reply via the EKT’s microphone as long 
as the telephone remains off-hook. The feature 
is activated automatically or by dial access (I) on 
a programmable station-by-station basis (see Fig- 
ure 25). 
NOTE. 
If the station user is involved in a hands- 
free conversation (on-hook), the 
caller re- 
ceives a busy signal. 
09.02 Programming: Verify the proper pro- 
gramming via Programs 01 and 5XX in 
Pro- 
gramming Procedures, 
Section 500-036-300 
(LED 00 in Program 01 must be set to voice 
first for OCA to function). 
09.03 Hardware Requirements: Ensure the 
HKSU has part number 605 (Se) or 705 (Vie), 
and install: 
l SVCU PCB per Paragraph 05.70. 
l Jumper cables on SSTU PCB per Paragraphs 
05.40 and 05.70. 
09.04 EKT Requirements: Any Toshiba EKT, 
off-premises extension or HIOB station may 
orig- 
inate an OCA call in a STRATAe Release 2 sys- 
tem, as there are no special hardware require- 
ments. But OCA calls may be 
received by EKTs 
meeting the following criteria only: 
* 6XX5 series 
a Connected with 3-pair wiring 
a Equipped with HVSU PCB. 
09.05 To Test OCA: Connect three stations 
(station A is equipped for OCA), and conduct the 
following: 
1) Go off hook with station A and make an in- 
tercom call to station B, verify the speech 
path. 
2) Use station C to call station A via the inter- 
com: 
-3 
: 
-16-  
						

							INSTALLATION INSTRUCTIONS 
SECTION 500-036-200 
JANUARY 1988 
Stratae HKSU 
Statlon Card B 
I 
Statlon Card C  Statjon Card C 
---em Normal Talk Path 
- - OCA Talk Path 
EKT B 
EKT A 
Data Pair 
-r?EiEq .*- 
Voice Pair HANDSET 
------------_ 
(lalk Path 1) 
1 1T 4 
L-E 
RECEIVER 
0 
: p TRANSMllTER 
L- OCA Pair 
w-m-- 
(Talk Path 2) 
Data Pair 
EKT C 
FIGURE 25-OFF-HOOK CALL ANNOUNCE FUNCTIONAL BLOCK DIAGRAM 
l If in automatic mode*: Station A receives 
a single tone burst (an OCA speech path 
exists between stations A and C via the 
EKT’s speaker and microphone-verify). 
l If in dial 1 mode: Station C receives busy 
tone, then dials ,3 to establish an OCA 
speech path between stations A and C- 
verify. 
*Program 5XX LED 1.2 determines the 
mode of the originating station. 
09.10 HCNB 
09.11 General: Provides IA2 Interface for 
the system.Each HCNB supports three CO/lA2 
interface line circuits. The HCNB provides line 
supervision between the HKSU and the lA2 
equipment. The maximum distance between 
these units is determined by the lA2 Interface 
line circuit specifications. To install, follow the 
procedures listed below: 
1) Connect tip/ring, lamp and A lead connec- 
tions per Figure 26. 
Using the provided 4-pair modular cord, con- 
--‘ nect the HK,CIJ to the HCNB. 3) Connect the MDF to the modular blocks with 
24 AWG wire. 
4) Connect the supplied field ground wire. 
NOTE. 
Connecting the jumper wires WI and W9 
is not necessary. 
09.12 Programming: Verify the correct pro- 
gramming for lA2 interface via Program 0#7. 
09.13 To Test lA2 Interface: Conduct the 
following test on each incoming line: 
1) Depress each m line key on an EKT. 
l Verify that the corresponding lamp lights 
on a lA2 telephone. 
2) Make a test call from the EKT. 
l Verify that the call may be monitored at 
the lA2 telephone. 
3) Repeat steps 1 and 2 at the lA2 telephone. 
4) Place each CO line (one at a time) on hold 
at an EKT. 
0 Verify that the CO appearance on the 
lA2 telephone is on hold. 
.> 
: 
-17- .  
						

							INSTALLATION INSTRUCTIONS 
SECTION 500-036-200 
JANUARY 1988 
5) Repeat step 4 at the lA2 telephone, and all 
appropriate telephones in both systems. 
NOTE: 
Exclusive hold is a function of each system 
(i.e., if a station places a line on exclusive 
hold, but the IA2 system does not provide 
this feature, the line may be picked up by 
any IA2 telephone (and vice versa). 
09.20 
HI09 
09.21 General: Provides a circuit interface 
with the system for external devices such as a 
voice mail machine, answering machine, stan- 
dard telephone*, modem, etc. (see Figure 27). 
The Hi06 circuit includes a DTMF generator, 
DTMF receiver, ring generator, answer detector 
and voice circuit (DTMF signal time from HIOB 
to device is fixed at 160 ms). Table A indicates 
available station lines and system capacities. 
“Least Cost Routing and Toll Restriction 
apply to standard telephones. iKSU t HIOB 
DATA DECODER 
656.2 Fwl DATA ENCODER . 
* 
tMm 
DTMF RECEIVER 
A 
AC Adqmr 
‘7OV WMS) JlJlJ7Jb 
VOICE 
MAIL 
DEVICE 
J FIGURE 27-HIOB FUNCTIONAL BLOCK DIAGRAM 
BRIDGE CLIPS, 
HKSU IS. a “I,, 
R 
CORD 
H HCNB) 
HCNB II, 
II I 
l T & A TO CO4 (VI,) 
WA LEADS TO CHl/HCf a 2 
CIRCUIT 3 bCH3 OPL 1dp-l-1 
T & R TO CO6 Ma) 
L’A LEADS TO CHZ/HCNE 2 
T & A TO CO6 We) 
WA LEAOS TO CHJ/HCNB 2 f TO FIELD GROUND POINT 
*CIRCUIT I4 - 6) STRATA VI, ONLY 
&%.I BLOCK 
(150 SPLIT BLOCK) 
FIGURE 26-HCNB CONNECTIONS 
.a