Strapping Options

TM 11-5805-424-15/NAVELEX 0967-220-9010/TO 31W2-2G-41

(a) Strap terminals 1, 2, and 3 on

radiation. Be careful not to damage

assembly A3 (C, fig. 2-5).

the rfi gasket when securing the

chassis to the case.

f. Connect the cable connector on the rear of the

chassis; slide the chassis completely into the case, and

secure the chassis to the case with the front panel

securing screws.

2-4. Strapping Options

a. AC Power. Determine the type of alternating

current (ac) power to be used and be sure that only the

required strapping ((1) or (2) below) is used.

(1) 115 volts.

Connect a strap between

terminals 1 and 2, and terminals 3 and 4 on the ac

power input strapping terminal board (fig. 1-7).

(2) 230 volts.

Connect a strap between

terminals 2 and 3 of the ac power input strapping

terminal board (fig. 1-7).

b. Station Clock Signal.

(1) Internal. Strap terminals TP3 and TP4 on

assembly A1 (A, fig. 2-5).

(2) External. Strap terminals TP1 to TP2 and

TP4 to TP5 on assembly A1 (A, fig. 2-5).

c. Received Data Output Signal.

(1) Retimed.

(a) Strap terminals 1 and 3 on the

harness card (fig. 2-4).

(b) Strap terminals 3 and 4 on assembly

A11 (B, fig. 2-5).

(2) Not retimed.

(a) Strap terminals 2 and 3 on the

harness card (fig. 2-4).

(b) Strap terminals 2 and 4 on assembly

A11 (B, fig. 2-5).

d. Order Wire Signal. If the order-wire facility is to

be used, strap terminals 1 and 4 on assembly A11 (B,

fig. 2-5); then select either option provided below:

(1) Terminal applications. The manual reset

option may be used at both MD-674(P)/G's in the link,

but only one of the MD-674(P)/G's may use the

automatic reset option

(a) Manual reset. Strap terminals 5 and 6

on the harness card (fig. 2-4).

(b) Automatic reset. Strap terminals 4

and 6 on the harness card (fig. 2-4).

(2) Repeater applications. Each MD-674(P)/G

may be strapped as described in (1) above when an

operator is stationed at the site. When no operator is

Figure 2-2. Terminal board identification diagram.

stationed at the site, make the strapping connections

indicated below.

Change 5 2-3