user manual

Line Telephones, modem pooling, and Voice Mail’
traffic. Heavier traffic may require additional
MFR-EA ETUs be installed even though the amount of
SLTs installed are low.
Table 200-l Recommended MFR-EA ETU Quantities
SINGLE LINE TELEPHONES
MFR.EA ETUs
CONNECTED RECOMMENDED
i
I
0 0
l-20
I
1
21-40 2
I
41-60 3
61-76
I
4
I
j _,-
To determine the quantity of interface ETUs required,
refer to Table 200-2.
For your reference, interface slot and port assignment
numbers are shown in Figure 200-2.
3. Common ETUs.
a. A CPU-E( ) ETU must be installed in the CPU
slot of the ESE-32B-1 CCU.
b. TSW-E, or TSW-EB ETU must be installed in
the TSW slot in the ESE-32B-1 CCU.
c. MMC-E ETU must be installed in the MMC slot
in each ESE-32E-1 CCU.
d. SMDR-E ETU can be installed in any option
(OP) slot in either the ESE-32B-1 or ESE-32E-1
ecus.
e. LCR-E ETU can be installed in any option (OP)
slot in either the ESE-32B-1 or ESE-32E-1
ecus.
/
CCU
4
/
ecu
3
/
m
s
z;
7
S
U
-
P
S
-;I
S
G
--ii
S
G
R
S
0
P
1
0
1
P
1
0
P
0
P
2
0
P
2
-
0
P
2
0
P
1
-
ND-20292
CHAPTER 2
APRIL, 1990
4. CCUs, PSUs, and RSGs
a. An ESE-32B-1 CCU is always required.
b. ESE-32E-1 CCU:
Divide the total number of interface ETUs by 8.
If the result is not a whole number, round it up
to the next higher whole number. The whole
number minus one is the quantity of ESE-32E-1
CCUs required.
NOTE: If total number of interface’ ETUs is 8 and
SMDR-E and LCR-E ETUs are installed, an
ESE-32E-1 CCU is required.
c. PSE-AD-l, PSE-DD-1 PSUs:
One PSE-AD-1 or PSE-DD-1 PSU is required for
each CCU. The quantity of ESE-32B-1 CCU and
ESE-32E-1 CCU is equal to the total of PSUs
required. PSE-AD-( ) and PSE-DD-( ) PSUs
should not be installed in the same system.
Operational integrety of the system may be
degraded ifpower is lost to the individual CCUs.
d. RSG-E Unit:
An RSG-E Unit is required for each (or two
adjacent) CCU in which SLI-E( ) and VMI-E
ETUs are installed (Refer to Table 200-3).
Table 200-3 Recommended RSG-E Unit Quantities
SINGLE LINE TELEPHONES RSG-E UNITS
CONNECTED RECOMMENDED
0 0
l-24 1
25-48
2
49-76 3
I ‘:::,I 1
1271 123 1119 I115 1
109 105
110 106
111 107
112 108
77/ 73
78 74
791; 75
80%' 76
45 41
46 42
47 43
48 44
13 09
14 10
15 11
16 12
321 ** 124
8”
Figure 200-2 Interface Slot and Port Assignment Numbers
200-3