Specifications

T1 AND E1 FIBER MUXES

3.2.4 FRONT AND REAR CLEARANCE

Allow at least 36 inches (91.4 cm) of frontal clearance for operator access. Also allow at least 4 inches (10.2 cm)

clearance at the rear of the mux for your interface cable connections. When planning the routing of fiber optic

cables, avoid sharp bends.

3.2.5 A

MBIENT REQUIREMENTS

The mux’s ambient operating temperature is 32 to 122°F (0 to 50°C), at a relative humidity of up to 90%,

noncondensing.

3.3 Additional Equipment Needed

You’ll need the following equipment (not included) to install the T1 or E1 Fiber Mux:

• ST link connector cables (for optical interface).

• RJ-45 T1 or E1 connector cables (for channel interfaces).

If you plan on installing the mux in a 19" rack with the optional rackmount kit, you’ll also need a Phillips

screwdriver.

3.4 Setting the Internal Jumpers and Switches

WARNING

This product includes Class A or Class 1 lasers. For your safety:

• Do not look directly into the optical connectors while the multiplexor is operating.

Remember that the T1 or E1 Fiber Mux starts operating as soon as the Power button

is switched to On.

• Do not attempt to adjust the laser drive current.

• Using optical instruments with this equipment will increase the risk of eye injury.

Laser power up to 1 mW at 1310 nm and 1550 nm could be collected by an optical

instrument.

• Performing procedures other than those specified herein may result in hazardous

radiation exposure.

• CAUTION: The laser beam may be invisible.

Prior to installing the mux, check the positions of its internal jumpers and switches. If necessary, change the

settings in accordance with the specific requirements of your application.

To open the mux and access the internal jumpers and switches:

1. Disconnect all cables connected to the mux.

2. Unscrew the two large captive screws fastening the top cover to the rear panel.

3. Remove the mux’s top cover.