PULSECOM 4TOLB-3L1 - Page 15

15
4TOLB-3L1
1306, Issue 2, May 1992
Figure 8. 4TOLB-3L1 Functional Diagram
20
T1
47
R1
4
MIN
TRANS-
FORMER
TRMT
ATTN
0 to 32.5 dB
S1 & S2
45
LOCAL
LB
25
LOCAL
19
LOCAL
LB GND
LB GND
LB
*
*
CUSTOMER
INTERFACE
CONNECTIONS
P/O S6
D4/COT
D4/COT
RT
RT
SOURCE
TRANS-
FORMER
LB
1
7
TRMT
-8.5 dB
TLP
TRMT
FILTER
2
8
GND
NC
+12 dB
BOOST
LB
LOGIC
LB
RELAY
TONE
20
MIN
S9
LB MODE
LB
INDICATOR
-48 SP
2713 Hz
DETECT
3
9
RCV
+4 dB
TLP
RCV
FILTER
RCV
GATE
RPAM
RPAMG
4
10
RNDIS
14
TRMT
GATE
TPAM
TPAMG
28
29
TWD
6
TSP(N)
7
TSQ(N)
8
TNEN
32
RWD
39
RSP(N)
13
RSQ(N)
40
PREWIRED
CHANNEL
BANK
CONNECTIONS:
PD4, PD4-24,
PD4-48, or
PSC-96
CONTROL
LOGIC
41
42
NOTE: POWER SUPPLY LEADS
ARE NOT SHOWN
LB
RCV
ATTN
0 to 24 dB
S3 & S4
23
LOCAL
46
TEK 5
52
TEK 5
48
TEK 6
CUSTOMER
INTERFACE
CONNECTIONS
G/L NETWORK
0 to 31.75 dB
S7 & S8
12dB
ATTN
MAN
LB
NO SC
NO SC
SINK
SINK
LB
SOURCE
S5
SEALING
CURRENT
REGULATOR
LB
-48 F
P/O S6
D4/COT
D4/COT
RT
RT
TEK 5
TEK 6
LB
*
*
TEK 6
49
*
SHOWS LOOPBACK CONNECTIONS FOR PSC-96 OR SLC 96 RT BANK ONLY.
+5 V
P/O CARD-EDGE
CONNECTOR
P/O CARD-EDGE
CONNECTOR
24
51
T
R
LB