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408 408 408 408 008D
PFT
04
03
02
01
PFT
08
07
06
05
PFT
12
11
10
09
PFT
16
15
14
13
20
19
18
17
RS-232-C (M25B)
17’ max.
--------------------------
/
D8W cord
1000' max.
/
MTDM
2212C
Modem
08
07
06
05
04
03
02
01
16
15
14
13
12
11
10
09
24
23
22
21
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18
17
32
31
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27
26
25
36
35
34
33
MTDM
2212C
Modem
----------------------
Modem pool
D4BU to
Central Office
line jack
MERLIN II System
control unit
FIGURE 1-16 Connectivity of a modern pool on dedicated outside lines.
GENERAL
Modems are an essential part of MERLIN II system
REQUIREMENTS FOR
features involving local and remote computer access. Any
MODEMS
modem other than the 2212C used with system hardware
should meet the following requirements to ensure proper
operation under all conditions. Modem requirements
differ according to applications. When planning the
system, remember the various modem configurations such
as a single modem for analog voice/data or modem pools.
The planning information recorded on the individual
Station Configuration forms should reflect the exact
modem arrangement for each station.
1-58 System Connectivity