3
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Receive Data (A)
<—
3
2
<—
Transmit Data (A)
Receive Data (B)
<—
16
14
<—
Transmit Data (B)
Receive Clock (A)
<—
17
24
<—
Terminal Timing (A)
Receive Clock (B)
<—
9
11
<—
Terminal Timing (B)
Transmit Data (A)
—>
2
3
—>
Receive Data (A)
Transmit Data (B)
—>
14
16
—>
Receive Data (B)
Terminal Timing (A)
—>
24
17
—>
Receive Clock (A)
Terminal Timing (B)
—>
11
<—>
9
—>
Receive Clock (B)
Signal Ground
<—>
7
Fiber cable
7
<—>
Signal Ground
Data Set Ready (A)*
<—
6
6
—>
Data Set Ready (A)*
Data Set Ready
<—
22
22
—>
Data Set Ready (B)*
Data Terminal Ready (A)**
—>
20
20
<—
Data Terminal Ready (A)**
Data Terminal Ready (B)**
—>
23 23
<—
Data Terminal Ready (B)**
Carrier Detect (A)*
<—
8
8
—>
Carrier Detect (A)*
Carrier Detect (B)*
<—
10
10
—>
Carrier Detect (B)*
Frame Ground
<—>
1
1
<—>
Frame Ground
LOCAL MODEM
DCE
DCE
REMOTE MODEM
* Produced by local modem, not received from remote modem.
** Signal not physically passed, used to control signal flow through local modem.
FIGURE 2. F22XX MODEM LINK CONFIGURATION
Model / Part
Number
Dimensions
Description
Power Supply Required
HF-1
* / 19052
7.1 in. wide (18.0 cm) x
1.3 in. high (3.3 cm) x
11.6 in. deep (29.5 cm)
Single Card
Standalone Enclosure
PSAC15 /
LTWPD1215PLX (US)
PSAC09
/ LTWPD1210EPL (VDE)
HF-2SS
/ 19629
19.0 in. wide (48.3 cm) x
1.7 in. high (4.3 cm) x
13.8 in. deep (35.1 cm)
2-Slot
Rack Mount Chassis
PSAC15 /
LTWPD1215PLX (US)
PSAC09
/ LTWPD1210EPL (VDE)
HF-20A /
32406
19.0 in. wide (48.3 cm) x
7.1 in. high (18.0 cm) x
11.6 in. deep (29.5 cm)
20-Slot
Rack Mount Chassis
AC300WR /
32410 (Universal)
* One Power Adapter per Modem is required when installed in these Models.
TABLE 1. ENCLOSURES / CHASSIS