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Route gaseous system piping with discharge nozzles inside the frames just below

the top of the frame. Gas cylinders and control equipment must be external to the

library. IBM does not supply heat or smoke detectors.

Environmental specifications

The following tables show the environmental guidelines and acceptable levels of

gas and particulate exposure for the TS4500 tape library.

Attention: The environments in Table 35 refer to the hardware of the TS4500 tape

library and may lead to temperatures greater than allowable for the cartridges and

media stored in the library. For frames that contain LTO tape cartridges or IBM

3592 Enterprise Tape Cartridges, refer to their environmental and shipping

specifications. Then, adjust the operating environment for the library accordingly.

Refer to the topics Environmental and shipping specifications for LTO cartridges and

Environmental and shipping specifications for 3592 cartridges.

Table 35. Equipment environment specifications for the TS4500 tape library

Product operation Product power off

Dry-bulb temperature

Relative Humidity

(Non-condensing)

Maximum

Wet-Bulb

Temperature

Maximum elevation

Dry-bulb

temperature

Relative

humidity

(%RH,

non-

condensing)

Maximum

Wet-Bulb

Temperature

Allowable Recommended

Allowable

(% RH)

Recommended

(% RH)

16 to 32°C 16 to 25°C 20 to 80% 20 to 50% 26°C 3050 m 5 to 45°C 5 to 80% 26°C

Notes:

1. Tape products require a stable and more restrictive environment (similar to Class 1). Typical requirements: rate of change of temperature is less than 5°C/h, rate of change

of humidity is less than 5% RH per hour, and no condensation. For 3592 media, changes of up to 40% RH in 5 minutes are allowed as long as the 20% to 80% absolute

limits are not exceeded.

2. Derate maximum dry-bulb temperature 1°C/300 m (1.8°F/984 ft.) above 900 m (2 953 ft.).

Figure 22. Location for routing fire-suppression equipment between frames

86 IBM TS4500: Introduction and Planning Guide